Weight loss and blood pressure 15. August 2008 William Davis (6) Here's another thought with regards to time issues with weight loss: reductions in blood pressure (BP). The previous post talked about how triglycerides initially go up, sometimes way up, when weight drops, only to be followed months later by substantial drops. HDL initially drops in response to the triglyceride fluctuations, only to be followed by a rise. Blood pressure also shows a curious pattern that is largely dependent on age. Say someone in their 20s or 30s, for instance, loses 30 lbs (through elimination of wheat and cornstarch, say). BP usually drops within a few weeks, perhaps a month or two at most. How about someone in their 70s? Say a substantial amount of weight is lost, say 50 lbs over 6 months. BP does indeed drop, but it may require 6 months or longer after weight plateaus for the full effects of BP-reduction to be fully expressed. But it will eventually drop. Why the age-dependent difference? It relates to the capacity of arteries to remain flexible and distensible. Over the years, cross-linking of collagen (a structural protein), glycation (glucose molecules attaching to proteins), loss of endothelial responsiveness to generate artery-dilating substances like nitric oxide, and arterial atherosclerotic plaque all all up to making older arteries less able to "relax" and BP to drop. But given time and the proper effort, BP will eventually drop. Awareness of this time effect can help most people decide better when medications are necessary or if weight loss alone is sufficient to reach BP goals.
"I lost 30 lbs and my triglycerides went . . . up?" 13. August 2008 William Davis (6) Brad needed to lose weight. At 6 ft tall, he began the program at 291 lbs, easily 80 lbs overweight. He wore virtually all of it in his belly. He had laboratory numbers to match: HDL 33 mg/dl, triglycerides 225 mg/dl, LDL (calculated) 144 mg/dl, blood sugar 122 mg/dl (fasting--clearly "pre-diabetic"), c-reactive protein 3.0 mg/dl. Among his lipoprotein abnormalities: small LDL representing 80% of all LDL (no surprise). Readers of The Heart Scan Blog know that these are the patterns of the carbohydrate-indulgent. I asked Brad to eliminate all wheat flour products, all foods made with cornstarch, and follow a diet rich in healthy oils, raw nuts, vegetables, and lean meats. Brad returned for a discussion about follow-up basic lipids (cholesterol) values four months later--31 lbs lighter, most of it clearly lost from his abdomen. He claimed he felt more energetic and clear-headed than he had in years. His lipid panel: HDL 34 mg/dl, LDL 122 mg/dl, triglycerides 295 mg/dl. Brad's smile dissolved. "How could that happen? You said losing weight would make my HDL go up and my triglycerides go down!"Yes, I had said that. But I was oversimplifying. The truth is that, when there is weight loss, especially profound weight loss like Brad experienced eliminating wheat and cornstarch products, there is mobilization of fat stores. Fat is stored energy. Energy is stored as . . . triglycerides. So when there is substantial weight loss, there is a flood of triglycerides in the blood, and triglyceride levels in the midst of weight loss can commonly jump up, not uncommonly to the 200-300+ mg/dl range. When triglycerides go up, there is also a drop in HDL (triglycerides interact with HDL particles, modify their structure and make them more readily destroyed, thereby dropping blood levels). Occasionally, substantial weight loss like Brad experienced will drop HDL really low, as low as the 20's. Once weight stabilizes, this effect can last up to 2 months before correcting. Only then will triglycerides drop and HDL rise. The rise in HDL occurs even more slowly, requiring several more months to plateau. In other words, weight loss like Brad's causes triglycerides to increase and HDL to decrease, to be followed later by a drop in triglycerides and a rise in HDL. I know of no way to block this phenomenon. And perhaps we shouldn't, since this is how fat stores are mobilized and "burned off." Fish oil does blunt the triglyceride rise (perhaps through activation of lipoprotein lipase, an enzyme responsible for clearance of triglycerides), but doesn't eliminate it. I call these changes "transitional" changes in lipids. Patience pays. A few more months from now, Brad's numbers will be much happier, as will Brad.
Divorce court for the doctor-patient relationship? 10. August 2008 William Davis (4) The doctor-patient relationship has gone sour. This probably comes as no surprise to most of you, particularly if you've been following conversations here in The Heart Scan Blog:Who is your doctor? discussing the emergence of the physician-as-hospital-employee phenomenon that causes your doctor to become the de facto portal (seller?) of hospital services to you, a model fraught with conflicts of interest.Exploitation of trust, my observation that the enormous gap in heart disease prevention between the woefully ignorant (by necessity) level of sophistication of the primary care physician and the procedure-obsessed cardiologist leads to an exploitation of humans-for-heart-procedures because of the failure to institute genuine preventive efforts. Bait and switch , a description of how a minor test or symptom can reap a bonanza of medical testing; a $20 "screening" test yields $10's of thousands in hospital procedures. If it were entirely due to the imprecision of medical testing and detection of disease, that might be forgivable. But it often is not: It has become utterly distorted by the profit model. Lest you think that I am a kook ranting off in some backwoods corner (Milwaukee), here are the comments of New York Times' Health Editor Tara Parker-Pope in a series called Doctor and Patient, Now at Odds:Lately I've been hearing a lot from patients who are frustrated, angry, and distrustful of doctors. Their feelings speak to a growing disconnect between doctors and patients and worries that drug companies, insurance rules, and hospital cost-cutting are influencing the care and advice that doctors provide. Research shows that even among patients who like their personal physicians, there is a simmering distrust of the medical system and the doctors who work inside it. (There's also a series of candid video interviews with people who echo these sentiments.)There are a number of reasons for this increasing "disconnect," some of them articulated by Ms. Parker-Pope, others detailed in my blog posts. The solutions, however, will not be found by advancing technology: the newest robotic surgery, a better defibrillator, a new statin drug, the next best chemotherapeutic agent. It will not be found by adding a new wing to the hospital. It will not be found by the reorganization of healthcare delivery achieved by converting primary care and specialty practice into an arm of hospital care. It will not be improved by employing "hospitalists." It will not emerge from legislation controlling insurance company practices. It certainly will not come from increasing marketing dollars spent by drug companies (who make $4 for every $1 spent on direct-to-consumer marketing). The solutions will come from shifting the idea of care from a paternalistic, "I'm the doctor and I'll tell you what to do" approach, to the doctor-as-advocate-and-supporter of the patient. The physician should act as someone with a particular sort of expertise that can advise a patient. But a caveat: The patient MUST be informed. Proper information will not originate with the doctor. It will originate with internet-based information portals and tools that help you understand the issues, often with far greater depth than your doctor could ever provide. The physician needs to accept this role, one of advocate, adviser, but not of being in charge, not of viewing the patient as profit-center, not as an opponent in a power struggle. Sadly, the last few years in online information portals has been dominated by the drug company-dominated websites like WebMD, nothing more than a deliverer of the conventional wisdom with nothing whatsoever aimed towards empowering patients in a self-directed healthcare model. Some people call the emerging new empowered and information-armed patient Medicine 2.0. Unfortunately, Medicine 2.0 will first benefit the intellectual upper crust of Americans, the web-savvy and motivated to engage in health issues. But, give it 10 years, and we will witness the effects on an unprecedented broad scale. Part of the Information Age is acceleration of information dissemination. Imagine your children, facile with a computer mouse, posting comments on FaceBook, doing homework with Google and Wikipedia, now turning their attentions to health. It will be a startling change. In the meantime, be wary. Be empowered. Think increasingly about self-direction in your health. In a comment to the Bait and switch post, Jennytoo offered an insightful response: You are getting to the essence of the problem, and it's not just cardiology that is rife with what is, at bottom, malpractice.There is little incentive for the profession as a whole to know anything about or promote prevention, and many incentives from hospitals, drug and insurance companies to stick with the status quo or to change it in their corporate favor. The formulaic, conventional statements purporting to be guidelines for prevention that are put out by various interest groups and in such publications as hospital-sponsored newsletters ("eat a 'balanced diet', avoid stress, etc.") are useless sops to the concept of prevention. It is, and I fear is going to remain, up to motivated individuals, both physicians and patients, to reshape the system, and it's going to be a long frustrating struggle. It's my personal conviction that if just 4 things were promoted to the public, and people actually practiced them, we could change the health profiles of the majority of people in this country for the better within two years or less. They are:(1) education on and promotion of a true low-carbohydrate, whole foods, diet, (2) measurement and supplementation of Vitamin D3, (3) supplementation with DHA/EPA (found in Fish Oils), and (4) measurement and supplementation of intracellular magnesium. I am not a health professional, and others may want to add to this list, but I don't think any strong case can be made against any of the items. The wonderful and hopeful thing is that each of us can implement them ON OUR OWN, and thereby take charge of our own well-being. (The Life Extension Foundation is one organization which provides access to lab tests you can request on your own.) If you have a physician who is willing and capable of being your partner, you are richly blessed, and that is the ideal we all should hope for. But in the more likely event that you do not have such a physician, and if your physician demonstrates little potential for becoming one, think about firing the one you have and finding another. Sometimes we are forced by circumstances, particularly urgent ones, to deal with physicians who are not ideal, but the main impetus for change will come from us, the patients, and the expectations we communicate to our individual doctors. In the meantime, we can be self-reliant in our own prevention practices. Wow. A woman after my own heart.
How much fish oil is enough? 9. August 2008 William Davis (7) This post just furthers this line of thinking out loud: How much fish oil is "enough"? Observations over the last 30 years followed this path: If a little bit of omega-3 fatty acids from fish are beneficial in reducing cardiovascular events, and a moderate intake is even better, is even more better? When have we reached a plateau? When do adverse effects outweigh the benefits? Some insight can be gained through studies that examined blood levels of omega-3s. Let's take a look at some data from 2002, a comparison of men dying from heart disease vs. controls in the Physicians' Health Study, Blood Levels of Long-Chain n–3 Fatty Acids and the Risk of Sudden Death. This is a table that shows the blood levels of various fatty acids Group with sudden death vs Control Group:Several observations jump out:--The total omega-3 blood content differed significantly, 4.82 vs 5.24% ("Total long-chain n-3 polyunsaturated")--Total omega-6 content did not differ--Arachidonic acid (AA) content did not differ--Linolenic acid content did not differ (i.e., plant sourced omega-3) The fact that neither omega-6 nor arachidonic acid content differed counters the argument that Simopoulos has made that the omega-6 to omega-3 ratio (intake, not blood levels) is what counts. It also argues against the EPA to AA ratio (and similar manipulations) that some have argued is important. In this study, only the omega-3 level itself made a difference; no ratio was necessary to distinguish sudden death victims vs controls. Further, quartiles of omega-3 blood levels showed graded reductions of risk:An omega-3 blood level of 6.87% conferred greatest risk reduction. Depending on the model of statistical analysis, risk reductions of up to 81-90% were observed. Wow. Taken at face value, this study would argue that:--An omega-3 fatty acid blood level of 6.87% (or greater?) is ideal--The omega-3 fatty acid blood level stands alone as a predictor without resorting to any further manipulation of numbers, such as relating EPA and/or DHA to AA levels.Of course, this is just one study, though an important one. It is also not a study based on any intervention, just an observational effort. But it does add to our understanding. We will develop these issues further in our upcoming Track Your Plaque Webinar on Wednesday, August 20th, 2008.
Omega-6 / omega-3 ratio 7. August 2008 William Davis (11) Most of us already know that the intake of omega-6 fatty acids in the American diet has gone overboard, much at the expense of the omega-3 fraction. This occurred as a result of the misguided advice of the 1970s and 1980s to eat polyunsaturated oils like corn, sunflower, and safflower, because of their presumed cholesterol-reducing properties compared to saturated fats. However, more recent examinations of this advice have suggested that the omega-6 fraction of oils present in polyunsaturated oils may amplify arachidonic acid and other inflammatory patterns despite the reduction in cholesterol (total and LDL). Dr. Artemis Simopoulos of the Center for Genetics, Nutrition and Health in Washington, D.C. has written extensively on the role of omega-6 and omega-3 fatty acids in diet. In a review entitled The Importance of the Omega-6/Omega-3 Fatty Acid Ratio in Cadiovacular Disease and Other Chronic Disease , Dr. Simopoulos collects the following comparison of omega-6 to omega-3 ratios from various populations: Paleolithic humans 0.79Greece (prior to 1960) 1.00-2.00Current Japan 4.00Current India, rural 5-6.1Current United Kindom and northern Europe 15.00Current United States 16.74Current India, urban 38-50(The numbers refer to the ratio of omega-6 to omega-3 intake.)If we believe the observations of Dr. Loren Cordain and others, while paleolithic man died of trauma and infectious diseases, they did not die of heart disease. Paleolithic human intake of omega-3 exceeded that of omega-6. Likewise, the traditionally low cardiac event regions of the world like Japan and Greece have less omega-3 intake than Paleolithic man, but still many times more than the U.S. and U.K. Worst of all with an enormous preponderance of omega-6 over omega-3 are urban Indians, who experience among the highest rates of heart disease in the world. Just for perspective, let's assume you eat an 1800 calorie per day diet, of which 30% of calories come from fat. This would amount to 540 calories per day from fat. With 9 calories per gram of fat, this means that there are 60 grams, or 60,000 mg, of fat in your diet per day. Paleolithic man has been found to have existed on a diet consisting of 21% of calories from fats. Again assuming an 1800 calorie per day diet, that comes to 42 grams of fat per day (42,000 mg). If we were to try to recreate the Paleolithic fat composition of diet, we would ingest 21,000 mg of omega-3 fatty acids (EPA, DHA, linolenic acid) per day. Even recreating a Japanese experience with a 4:1 ratio, it would mean 8400 mg of omega-3 per day. (Curiously, this does not agree with all estimates of Japanese intake of omega-3s.)No matter how you look at it, cultures with lower rates of cardiovascular disease take in greater--much greater--quantities of omega-3 fatty acids. So don't complain about your six fish oil capsules (usually containing 6000 mg of total oil, 1800 mg omega-3s)!
Dr. Bernadine Healy on heart scans 5. August 2008 William Davis (1) A Heart Scan Blog reader brought the following tidbit to my attention. Cardiologist and now writer for U.S. News and World Report, Dr. Bernadine Healy, wrote this editorial, a glowing endorsement of heart scans: The approach is beautifully simple. Calcium accumulates in advanced plaques, so calcium visible in the heart's arteries indicates atherosclerosis. An exploding number of studies in the past few years have unequivocally shown that the calcium score predicts both heart attack and sudden death. As a generalization, patients with scores between 100 and 400 face three to four times the risk of a heart attack or death compared with others at the same age with a zero score. Over 400, that elevated risk more than doubles.Most doctors rely instead on the Framingham calculator, which estimates a symptom-free person's risk of a heart attack in the next 10 years based on smoking history, blood pressure, cholesterol levels, sex, and age. It's available free online from the National Institutes of Health. Most people taking the test will have minimal or no coronary disease, though risk estimates over 9 percent should inspire vigorous preventive efforts. For some, however, coronary heart disease is sneaky, and Framingham will underestimate what lies ahead. Roughly half of those who suffer a major heart attack or sudden coronary death are symptom free. Calcium scores are additive to Framingham; they pick up the individual surprises by using X-ray vision to look inside the heart. No wonder insurance companies are scrambling to use coronary calcium scores—life insurers, that is.Dr. Bernadine Healy is no small-time player. In addition to her academic credentials, she is former chief of the National Institutes of Health (the first woman to hold the influential post), former head of the American Red Cross, and former deputy director of the White House Office of Science and Technology Policy under the Reagan administration. An endorsement of CT heart scans, though written under the guise of a probing editorial, will do an enormous amount of good to overcome the hurdles in gaining wider acceptance of heart scans.Those of us applying heart scans in everyday practice have long appreciated their enormous power to detect and track coronary plaque. Framingham scoring can't even touch the certainty and quantification provided by heart scans in day-to-day life. Hundreds of studies have validated their use, but they still suffer from lying in the shadows of the procedural bullies aiming to boost the number of heart catheterizations, angioplasties, stents, bypass surgeries. Dr. Healy, a voice with great weight, not just a political figure but also a cardiologist and scientist, has done a great service to broadcast the message of heart scanning.
Mercury and fish oil 2. August 2008 William Davis (9) As time passes, the dose of fish oil advocated in the Track Your Plaque program is going upward. While epidemiologic studies, like the Chicago Western Electric Study and the Nurses' Health Study suggest that decreases in mortality from heart disease begin by just eating fish a couple times per month, there are newer data that suggest greater quantities confer greater benefits. In the last Heart Scan Blog post, I discussed the recently-released ERA JUMP Study that demonstrated a relationship between higher omega-3 fatty acid blood content and reduced quantities of carotid and coronary plaque. The JELIS Study demonstrated a 19% reduction in cardiovascular events when fish-consuming Japanese added 1800 mg of EPA (only). However, the suggestion that increased quantities of fish oil potentially yield greater protection from heart attack and facilitate coronary plaque regression is also stirring up worries about mercury exposure. So I dug up a Heart Scan Blog post from a year ago that discussed this issue and reprint it here. I often get questions about the mercury content in fish oil. I've even had patients come to the office saying their primary care doctor told them to stop fish oil to avoid mercury poisoning. Manufacturers of fish oil also make claims that this product or that ("super-concentrated", "pharmaceutical grade", "purified", etc.) is purer or less contaminated than competitors' products. The manufacturers of the "drug" Omacor [now Lovaza], or prescription fish oil, have added to the confusion by suggesting that their product is the most pure of all, since it is the most concentrated of any fish oil preparation (900 mg EPA+DHA per capsule). They claim that "OMACOR is naturally derived through a unique, patented process that creates a highly concentrated, highly purified prescription medicine. By prescribing OMACOR® (omega-3-acid ethyl esters), a prescription omega-3, your doctor is giving you a concentrated and reliable omega-3. Each OMACOR capsule contains 90% omega-3 acids (84% EPA/DHA*). Nonprescription omega-3 dietary supplements typically contain only 13%-63% EPA/DHA." How much truth is there in these concerns?Let's go to the data published by the USDA, FDA, and several independent studies. Let's add to that the independent (and therefore presumably unbiased) analyses provided by Consumer Reports and Consumer Labs (www.consumerlab.com). How much mercury has been found in fish oil supplements?None.This is different from the mercury content of whole fish that you eat. Predatory fish that are at the top of the food chain and consume other fish and thereby concentrate organic methyl mercury, the toxic form of mercury. Thus, shark, swordfish, and King mackerel are higher in mercury than sardines, herring, and salmon. The mercury content of fish oil capsules have little to do with the method of processing and much more with the animal source of oil. Fish oil is generally obtained from sardines, salmon, and cod, all low in mercury. Fish oil capsules are not prepared from swordfish or shark. Thus, concerns about mercury from fish oil--regardless of brand--are generally unfounded, according to the best information we have. Eating whole fish--now that's another story for another time. But you and I can take our fish oil to reduce triglycerides, VLDL, IDL, small LDL, and heart attack risk without worrying about mercury.I am not advocating ad libitum eating of fish. Sadly, this may be related to excessive accumulation of contaminants. I am suggesting that greater quantities of omega-3 fatty acids from relatively contaminant- and mercury-free fish oil capsules. More on this in an upcoming webinar on the Track Your Plaque website: Fish Oil and the Track Your Plaque Program - Is More Better?
ERA JUMP: Omega-3 fatty acids and plaque 1. August 2008 William Davis Triticum aestivum, perverted even further by agricultural geneticists and modern agribusiness, subsidized by the U.S. government to permit $5 pizza, is better than any terrorist plot to discombobulate the health and performance of the American people. The Westman Diet 27. ožujka 2011 William Davis (71) Dr. Eric Westman has been a vocal proponent of carbohydrate restriction to gain control over diabetes, as have Drs. Richard Bernstein, Mary Vernon, Richard Feinman, and Jeff Volek. Several studies over the years have demonstrated that reductions in carbohydrate content of the diet yield reductions in weight and HbA1c (glycated hemoglobin, a reflection of average blood glucose over the preceding 60-90 days). Among the more important recent clinical studies is a small experience from Duke University's Dr. Eric Westman. In this study, obese type 2 diabetics reduced carbohydrate intake to 20 grams per day or less: no wheat, oats, cornstarch, or sugars. Participants ate nuts, cheese, meats, eggs, and non-starchy vegetables. After 6 months, average weight loss was 24.4 lbs, BMI was reduced from 37.8 to 34.4. At the end of the study, 95% of participants on this severe carbohydrate restriction reduced or eliminated their diabetes medications. That was only after 6 months. Note that the ending BMI was still quite well into the obese range. Imagine what another 6-12 months would do, or achieving BMI somewhere closer to ideal. Curiously, this idea of severe low-carbohydrate restriction to cure or minimize diabetes is not new. Sir William Osler, one of the founders of Johns Hopkins Hospital and author of the longstanding authoritative text, Principles and Practice of Medicine, advocated an diet identical to Dr. Westman's diet. So did Dr. Frederick Banting, discoverer of the pancreatic extract, insulin, to treat childhood diabetics. Before insulin, Banting and his colleagues at the University of Toronto used carbohydrate elimination (less than 10 g per day) to prolong the lives of children with diabetes. This lesson was also learned many times during war time, when staples like bread were unavailable. The Siege of Paris in 1870 yielded cures for diabetes in many (or at least they stopped passing urine that tasted--yes, tasted--sweet and attracted flies), only to have it recur after the siege was over.These are lessons we will have to relearn. As long as the American Diabetes Association and most physicians continue to advocate a diet of reduced fat, increased carbohydrate that includes plenty of "healthy whole grains," diabetics will continue to be diabetics, taking their insulin and multiple medications while developing neuropathy (nervous system degeneration), nephropathy (kidney disease and failure), atherosclerosis and heart attack, cataracts, and die 8 to 10 years earlier than non-diabetics. All the while, we've had the combined wisdom from antiquity onwards: Carbohydrates cause diabetes; elimination of carbohydrates cures diabetes. (This applies, of course, only to adult overweight type 2 diabetics, not type 1 or some of the other variants.) Handy dandy carb index 25. ožujka 2011 William Davis (21) There are a number of ways to gauge your dietary carbohydrate exposure and its physiologic consequences. One of my favorite ways is to do fingerstick blood sugars for a one-hour postprandial glucose. I like this because it provides real-time feedback on the glucose consequences of your last meal. This can pinpoint problem areas in your diet. Another way is to measure small LDL particles. Because small LDL particles are created through a cascade that begins with carbohydrate consumption, measuring them provides an index of both carbohydrate exposure and sensitivity. Drawback: Getting access to the test. For many people, the most practical and widely available gauge of carbohydrate intake and sensitivity is your hemoglobin A1c, or HbA1c. HbA1c reflects the previous 60 to 90 days blood sugar fluctuations, since hemoglobin is irreversibly glycated by blood glucose. (Glycation is also the phenomenon responsible for formation of cataracts from glycation of lens proteins, kidney disease, arthritis from glycation of cartilage proteins, atherosclerosis from LDL glycation and components of the arterial wall, and many other conditions.) HbA1c of a primitive hunter-gatherer foraging for leaves, roots, berries, and hunting for elk, ibex, wild boar, reptiles, and fish: 4.5% or less. HbA1c of an average American: 5.2% (In the population I see, however, it is typically 5.6%, with many 6.0% and higher.)HbA1c of diabetics: 6.5% or greater. Don't be falsely reassured by not having a HbA1c that meets "official" criteria for diabetes. A HbA1c of 5.8%, for example, means that many of the complications suffered by diabetics--kidney disease, heightened risk for atherosclerosis, osteoarthritis, cataracts--are experienced at nearly the same rate as diabetics. With our wheat-free, cornstarch-free, sugar-free diet, we have been aiming to reduce HbA1c to 4.8% or less, much as if you spent your days tracking wild boar. Battery acid and oatmeal 23. ožujka 2011 William Davis (38) Ever notice the warnings on your car's battery? "Danger: Sulfuric acid. Protective eyewear advised. Serious injury possible."Sulfuric acid is among the most powerful and potentially harmful acids known. Get even a dilute quantity in your eyes and you will suffer serious burns and possibly loss of eyesight. Ingest it and you can sustain fatal injury to the mouth and esophagus. Sulfuric acid's potent tendency to react with other compounds is one of the reasons that it is used in industrial processes like petroleum refining. Sulfuric acid is also a component of the harsh atmosphere of Venus. Know what food is the most potent source of sulfuric acid in the body? Oats. Yes: Oatmeal, oat bran, and foods made from oats (you know what breakfast cereal I'm talking about) are the most potent sources of sulfuric acid in the human diet.Why is this important? In the transition made by humans from net-alkaline hunter-gatherer diet to net-acid modern overloaded-with-grains diet, oats tip the scales heavily towards a drop in pH, i.e., more acidic. The more acidic your diet, the more likely it is you develop osteoporosis and other bone diseases, oxalate kidney stones, and possibly other diseases. Here's one reference for this effect. What'll it be: Olive oil or bread? 21. ožujka 2011 William Davis (0) We frequently discuss the advisability of consuming fats, carbohydrates, and various types within each category. But what's the worst of all? Combining fats with carbohydrates.Putting aside the wheat-is-worst form of carbohydrate issue and treating bread as a prototypical carbohydrate, let's play out a typical scenario, a make-believe feeding study in which a theoretical person is fed specific foods. John is our test person, a 40-year old, 5 ft 10 inch, 210 lb, BMI 27.7 (roughly the mean for the U.S.) He starts with an average American diet of approximately 55% carbohydrates and 30% fat. Starting lipoproteins (NMR):LDL particle number 1800 nmol/LSmall LDL 923 nmol/L (The LDL particle number of 1800 nmol/L translates to measured LDL cholesterol of 180 mg/dl, i.e., drop last digit or divide by 10.)Also, calculated LDL cholesterol is 167 mg/dl (yes, underestimating "true" measured LDL), HDL 42 mg/dl, triglycerides 170 mg/dl.We feed him a diet increased in carbohydrates and reduced in fat, especially saturated fat, with more breakfast cereals, breads and other wheat products, pasta, fruit juices and fruit, and potatoes. After four weeks:LDL particle number 2200 nmol/LSmall LDL 1378 nmol/LNote that LDL particle number has increased by 400 nmol/L due entirely to the increase in small LDL particles triggered by carbohydrate consumption. Lipids show calculated LDL cholesterol 159 mg/dl--yes, a decrease, HDL 40 mg/dl, triglycerides 189 mg/dl. (At this point, if John's primary care doctor saw these numbers, he would congratulate John on reducing his LDL cholesterol and/or suggest a fibrate drug to reduce triglycerides.)John takes a rest for four weeks during which his lipoproteins revert back to their starting values. We then repeat the process, this time replacing most carbohydrate calories with fats, weighed heavily in favor of saturated fats like fatty red meats, butter and other full-fat dairy products. After four weeks:LDL particle number 2400 nmol/LLet's Chocolate peanut butter cup smoothie 19. ožujka 2011 William Davis (18) Here's a simple recipe for chocolate peanut butter cup smoothie. The coconut milk, nut butter, and flaxseed make this smoothie exceptionally filling. If you are a fan of cocoa flavonoids for reducing blood pressure, then this provides a wallop. Approximately 10% of cocoa by weight consists of the various cocoa flavonoids, like procyanidins (polymers of catechin and epicatechin) and quercetin, the components like responsible for many of the health benefits of cocoa. Ingredients:1/2 cup coconut milk1 cup unsweetened almond milk2 tablespoons cocoa powder (without alkali)2 tablespoons shredded coconut (unsweetened)1 tablespoon ground flaxseed1 teaspoon almond extract 1 1/2 tablespoons natural peanut, almond, or sunflower seed butterNon-nutritive sweetener to taste (stevia, Truvia, sucralose, xylitol, erythritol)4 ice cubesCombine ingredients in blender. Blend and serve. If you plan to set any of the smoothie aside, then leave out the flaxseed, as it absorbs water and will expand and solidify if left to stand. For an easy variation, try adding vanilla extract or 1/4 cup of sugar-free (sucralose) vanilla or coconut syrup from Torani or DaVinci and leave out the added sweetener. The compromise I draw here is the use of non-nutritive sweeteners. Beware that they can increase appetite, since they likely trigger insulin release. However, this smoothie is so filling that I don't believe you will experience this effect with this recipe. Letter from the insurance company 18. ožujka 2011 William Davis (24) Claudia got this letter from her health insurance company:Dear Ms. ------,Based on a recent review of your cholesterol panel of January 12, 2011, we feel that you should strongly consider speaking to your doctor about cholesterol treatment.Reducing cholesterol values to healthy levels has been shown to reduce heart attack risk . . . Okay. So the health insurer wants Claudia to take a cholesterol drug in the hopes that it will reduce their exposure to the costs for her future heart catheterization, angioplasty and stent, or bypass surgery. This is understandable, given the extraordinary costs of such hospital services, typically running from $40,000 for a several hour-long outpatient catheterization procedure, to as much as $200,000 for a several day long stay for coronary bypass surgery.So what's the problem? Here are Claudia's most recent lipid values:LDL cholesterol 196 mg/dlHDL 88 mg/dlTriglycerides 37 mg/dlTotal cholesterol 291 mg/dlBy the criteria followed by her health insurer, both total and LDL cholesterol are much too high. Note, of course, that LDL cholesterol was a calculated value, not measured. Here are Claudia's lipoproteins, drawn simultaneously with her lipids:LDL particle number 898 nmol/LSmall LDL particle number less than 90 nmol/L (Values less than 90 are not reported by Liposcience)LDL particle number is, by far and away, the best measure of LDL particles, an actual count of particles, rather than a guesstimate of LDL particles gauged by measuring cholesterol in the low-density fraction of lipoproteins (i.e., LDL cholesterol). It is also measured and is highly reproducible. To convert LDL particle number in nmol/L to an LDL cholesterol-like value in mg/dl, divide by ten (or just drop the last digit). Claudia's measured LDL is therefore 89 mg/dl--54% lower than the crude calculated LDL suggests. This is because virtually all of Claudia's LDL particles are large, with little or no small. This situation throws off the crude assumptions built into the LDL calculation, making it appear that she has very high LDL cholesterol. Do you think that Big Pharma advertises this phenomenon? Healthy smoothies 15. ožujka 2011 William Davis (51) I've now seen several people who have either caused themselves to be diabetic or to have other phenomena associated with excessive consumption of carbohydrates, all by innocently indulging in a carbohydrate-packed smoothie every morning. Kay, for instance, has a smoothie of a half-pint blueberries, a banana, a scoop of whey, low-fat yogurt, a cup of milk every morning. The rest of her diet was fairly healthy: salads with oil-based dressing for lunch, salmon and asparagus for dinner, only an occasional carbohydrate indulgence outside of her morning smoothie ritual. Yet she had a HbA1c (a reflection of prior 60 to 90 days average blood sugar) at the near-diabetic range of 5.9%. The mistake most people make when making smoothies is relying too heavily on carbohydrates like fruit. A smoothie like the one made by Kay can easily top 50, 60, or 70 grams carbohydrates per serving, more than sufficient to send blood sugars up to 150 mg/dl or more. So what can you put in your smoothie and not send you over the edge to diabetes, small LDL, and all the other undesirable phenomena of excessive carbohydrates? Here's a list:--coconut milk, unsweetened almond milk. Less desirable: milk, full-fat soymilk--ground flaxseed--oils: flaxseed oil, coconut oil (melted), extra-light olive oil, walnut oil--dried coconut--extracts: vanilla, almond, coconut, cherry, hazelnut--spices: cinnamon, nutmeg, ginger--herbs: mint leaves, cilantro--cocoa powder (unsweetened)--nut or seed butters (peanut butter, almond butter, sunflower seed butter)--tofu--exotic ingredients (ingredients you wouldn't expect in a smoothie): spinach, kale, cucumberHow do you sweeten a smoothie? This is what trips up most people. If you resort to fruit like bananas, pineapple, or apple, you will readily send your blood sugar skyward. Honey, agave syrup, and sugar, of course, all increase blood sugar and/or have the adverse effects of fructose. Be careful of yogurt, also, for similar reasons. Therefore, to sweeten your smoothie, consider:--Small servings of berries, e.g., 8-10 blueberries, 2 strawberries, a few wedges of apple, half a kiwi--Non-nutritive sweeteners like stevia, Truvia, sucralose, xylitol, erythritol. Also, sugar-free (sucralose-based) syrups like those from DaVinci and Torani are useful. (Just be aware that non-nutritive sweeteners can increase appetite--use sparingly.)Also, note that, if you have divorced yourself from wheat, cornstarch, and sugars, your desire for sweet should be much reduced. Foods other people find just right will taste sickeningly sweet to you. You might therefore find that foods like peanut butter or coconut milk have a mild natural sweetness; added sweetness is only minimally necessary. Coming next: I'll share a smoothie recipe or two of mine. Anyone want to share a recipe? Insulin secretagogue 14. ožujka 2011 William Davis (34) Dairy products have the peculiar property of triggering pancreatic release of insulin. The research group at Lund University in Sweden have contributed the most to documenting this phenomenon:Mean (±SEM) incremental changes (?) in serum insulin in response to equal amounts of carbohydrate from a white-wheat-bread reference meal (x) and test meals of whey (?), milk (?), cheese (?), cod (?), gluten-low (?), and gluten-high (?) meals. From Nilsson 2004.Note that it is the area under the curve (AUC), not the peak value, that assumes greatest importance. Dairy products, especially milk, whey, and yogurt, are insulin secretagogues: they stimulate pancreatic release of insulin. The effect is likely due to amino acids and/or polypeptides in dairy products. (The effect is less prominent with cheese. Also see this study.)By conventional wisdom, this may be a good thing, since the excess insulin will blunt the glucose rise after consumption. However, in my book, this is not such a good thing, since most of us have tired, beaten, overworked pancreatic beta cells from our decades of carbohydrate overconsumption. I fear that the effect of dairy products just take us a bit closer to beta cell failure: diabetes. Good news: The effect is least with cheese. Be gluten-free without "gluten-free" 9. ožujka 2011 William Davis (23) While I've discussed this before, it is such a confusing issue that I'd like to discuss it again.I advocate wheat elimination because consumption of products made from modern dwarf Triticum aestivum:--Triggers formation of extravagant quantities of small LDL and LDL particle number (or apoprotein B)--Triggers inflammatory phenomena like c-reactive protein, increases leptin resistance, and reduction of the protective adipocytokine, adiponectin.--Encourages accumulation of deep visceral fat ("wheat belly") that is inflammatory and causes resistance to insulin--Increases blood sugar more than nearly all other foods--higher than a Milky Way bar, higher than a Snickers bar, higher than table sugar. --Is being linked to a growing number of immune-mediated diseases, including celiac disease (quadrupled over past 50 years), type 1 diabetes in children, and cerebellar ataxia and peripheral neuropathies. This last group of wheat-related phenomena are primarily due to gluten, the collection of 50+ proteins found in each wheat plant. For this reason, people diagnosed with celiac disease are advised to eliminate gluten from wheat and other sources (barley, rye, triticale, bulgur) and to eat gluten-free foods. Gluten-free has therefore come to be viewed as wheat-free and problem-free. It ain't so. Among the few foods that increase blood glucose higher than wheat: cornstarch, rice starch, potato starch, and tapioca starch--Yup: the ingredients commonly used to replace wheat in gluten-free foods. They are also flagrant triggers of the small LDL pattern, along with increased triglycerides, reduced HDL, increased visceral fat, increased blood pressure. In short, gluten-free foods lack the immune and brain effects of wheat gluten, but still make you fat, hypertensive, and diabetic. I tell patients to view gluten-free foods like jelly beans: Gluten-free pancakes, muffins, breads, etc. are indulgences, not healthy replacements for wheat. It's okay to have a few jelly beans now and then. But they should not be part of a frequent or daily routine. Same with gluten-free foods. << Prijašnji postovi Sljedeći postovi >> Sljedeći postovi12...111213141516171819...123124Prijašnji postovi
The Westman Diet 27. ožujka 2011 William Davis (71) Dr. Eric Westman has been a vocal proponent of carbohydrate restriction to gain control over diabetes, as have Drs. Richard Bernstein, Mary Vernon, Richard Feinman, and Jeff Volek. Several studies over the years have demonstrated that reductions in carbohydrate content of the diet yield reductions in weight and HbA1c (glycated hemoglobin, a reflection of average blood glucose over the preceding 60-90 days). Among the more important recent clinical studies is a small experience from Duke University's Dr. Eric Westman. In this study, obese type 2 diabetics reduced carbohydrate intake to 20 grams per day or less: no wheat, oats, cornstarch, or sugars. Participants ate nuts, cheese, meats, eggs, and non-starchy vegetables. After 6 months, average weight loss was 24.4 lbs, BMI was reduced from 37.8 to 34.4. At the end of the study, 95% of participants on this severe carbohydrate restriction reduced or eliminated their diabetes medications. That was only after 6 months. Note that the ending BMI was still quite well into the obese range. Imagine what another 6-12 months would do, or achieving BMI somewhere closer to ideal. Curiously, this idea of severe low-carbohydrate restriction to cure or minimize diabetes is not new. Sir William Osler, one of the founders of Johns Hopkins Hospital and author of the longstanding authoritative text, Principles and Practice of Medicine, advocated an diet identical to Dr. Westman's diet. So did Dr. Frederick Banting, discoverer of the pancreatic extract, insulin, to treat childhood diabetics. Before insulin, Banting and his colleagues at the University of Toronto used carbohydrate elimination (less than 10 g per day) to prolong the lives of children with diabetes. This lesson was also learned many times during war time, when staples like bread were unavailable. The Siege of Paris in 1870 yielded cures for diabetes in many (or at least they stopped passing urine that tasted--yes, tasted--sweet and attracted flies), only to have it recur after the siege was over.These are lessons we will have to relearn. As long as the American Diabetes Association and most physicians continue to advocate a diet of reduced fat, increased carbohydrate that includes plenty of "healthy whole grains," diabetics will continue to be diabetics, taking their insulin and multiple medications while developing neuropathy (nervous system degeneration), nephropathy (kidney disease and failure), atherosclerosis and heart attack, cataracts, and die 8 to 10 years earlier than non-diabetics. All the while, we've had the combined wisdom from antiquity onwards: Carbohydrates cause diabetes; elimination of carbohydrates cures diabetes. (This applies, of course, only to adult overweight type 2 diabetics, not type 1 or some of the other variants.)
Handy dandy carb index 25. ožujka 2011 William Davis (21) There are a number of ways to gauge your dietary carbohydrate exposure and its physiologic consequences. One of my favorite ways is to do fingerstick blood sugars for a one-hour postprandial glucose. I like this because it provides real-time feedback on the glucose consequences of your last meal. This can pinpoint problem areas in your diet. Another way is to measure small LDL particles. Because small LDL particles are created through a cascade that begins with carbohydrate consumption, measuring them provides an index of both carbohydrate exposure and sensitivity. Drawback: Getting access to the test. For many people, the most practical and widely available gauge of carbohydrate intake and sensitivity is your hemoglobin A1c, or HbA1c. HbA1c reflects the previous 60 to 90 days blood sugar fluctuations, since hemoglobin is irreversibly glycated by blood glucose. (Glycation is also the phenomenon responsible for formation of cataracts from glycation of lens proteins, kidney disease, arthritis from glycation of cartilage proteins, atherosclerosis from LDL glycation and components of the arterial wall, and many other conditions.) HbA1c of a primitive hunter-gatherer foraging for leaves, roots, berries, and hunting for elk, ibex, wild boar, reptiles, and fish: 4.5% or less. HbA1c of an average American: 5.2% (In the population I see, however, it is typically 5.6%, with many 6.0% and higher.)HbA1c of diabetics: 6.5% or greater. Don't be falsely reassured by not having a HbA1c that meets "official" criteria for diabetes. A HbA1c of 5.8%, for example, means that many of the complications suffered by diabetics--kidney disease, heightened risk for atherosclerosis, osteoarthritis, cataracts--are experienced at nearly the same rate as diabetics. With our wheat-free, cornstarch-free, sugar-free diet, we have been aiming to reduce HbA1c to 4.8% or less, much as if you spent your days tracking wild boar.
Battery acid and oatmeal 23. ožujka 2011 William Davis (38) Ever notice the warnings on your car's battery? "Danger: Sulfuric acid. Protective eyewear advised. Serious injury possible."Sulfuric acid is among the most powerful and potentially harmful acids known. Get even a dilute quantity in your eyes and you will suffer serious burns and possibly loss of eyesight. Ingest it and you can sustain fatal injury to the mouth and esophagus. Sulfuric acid's potent tendency to react with other compounds is one of the reasons that it is used in industrial processes like petroleum refining. Sulfuric acid is also a component of the harsh atmosphere of Venus. Know what food is the most potent source of sulfuric acid in the body? Oats. Yes: Oatmeal, oat bran, and foods made from oats (you know what breakfast cereal I'm talking about) are the most potent sources of sulfuric acid in the human diet.Why is this important? In the transition made by humans from net-alkaline hunter-gatherer diet to net-acid modern overloaded-with-grains diet, oats tip the scales heavily towards a drop in pH, i.e., more acidic. The more acidic your diet, the more likely it is you develop osteoporosis and other bone diseases, oxalate kidney stones, and possibly other diseases. Here's one reference for this effect.
What'll it be: Olive oil or bread? 21. ožujka 2011 William Davis (0) We frequently discuss the advisability of consuming fats, carbohydrates, and various types within each category. But what's the worst of all? Combining fats with carbohydrates.Putting aside the wheat-is-worst form of carbohydrate issue and treating bread as a prototypical carbohydrate, let's play out a typical scenario, a make-believe feeding study in which a theoretical person is fed specific foods. John is our test person, a 40-year old, 5 ft 10 inch, 210 lb, BMI 27.7 (roughly the mean for the U.S.) He starts with an average American diet of approximately 55% carbohydrates and 30% fat. Starting lipoproteins (NMR):LDL particle number 1800 nmol/LSmall LDL 923 nmol/L (The LDL particle number of 1800 nmol/L translates to measured LDL cholesterol of 180 mg/dl, i.e., drop last digit or divide by 10.)Also, calculated LDL cholesterol is 167 mg/dl (yes, underestimating "true" measured LDL), HDL 42 mg/dl, triglycerides 170 mg/dl.We feed him a diet increased in carbohydrates and reduced in fat, especially saturated fat, with more breakfast cereals, breads and other wheat products, pasta, fruit juices and fruit, and potatoes. After four weeks:LDL particle number 2200 nmol/LSmall LDL 1378 nmol/LNote that LDL particle number has increased by 400 nmol/L due entirely to the increase in small LDL particles triggered by carbohydrate consumption. Lipids show calculated LDL cholesterol 159 mg/dl--yes, a decrease, HDL 40 mg/dl, triglycerides 189 mg/dl. (At this point, if John's primary care doctor saw these numbers, he would congratulate John on reducing his LDL cholesterol and/or suggest a fibrate drug to reduce triglycerides.)John takes a rest for four weeks during which his lipoproteins revert back to their starting values. We then repeat the process, this time replacing most carbohydrate calories with fats, weighed heavily in favor of saturated fats like fatty red meats, butter and other full-fat dairy products. After four weeks:LDL particle number 2400 nmol/LLet's
Chocolate peanut butter cup smoothie 19. ožujka 2011 William Davis (18) Here's a simple recipe for chocolate peanut butter cup smoothie. The coconut milk, nut butter, and flaxseed make this smoothie exceptionally filling. If you are a fan of cocoa flavonoids for reducing blood pressure, then this provides a wallop. Approximately 10% of cocoa by weight consists of the various cocoa flavonoids, like procyanidins (polymers of catechin and epicatechin) and quercetin, the components like responsible for many of the health benefits of cocoa. Ingredients:1/2 cup coconut milk1 cup unsweetened almond milk2 tablespoons cocoa powder (without alkali)2 tablespoons shredded coconut (unsweetened)1 tablespoon ground flaxseed1 teaspoon almond extract 1 1/2 tablespoons natural peanut, almond, or sunflower seed butterNon-nutritive sweetener to taste (stevia, Truvia, sucralose, xylitol, erythritol)4 ice cubesCombine ingredients in blender. Blend and serve. If you plan to set any of the smoothie aside, then leave out the flaxseed, as it absorbs water and will expand and solidify if left to stand. For an easy variation, try adding vanilla extract or 1/4 cup of sugar-free (sucralose) vanilla or coconut syrup from Torani or DaVinci and leave out the added sweetener. The compromise I draw here is the use of non-nutritive sweeteners. Beware that they can increase appetite, since they likely trigger insulin release. However, this smoothie is so filling that I don't believe you will experience this effect with this recipe.
Letter from the insurance company 18. ožujka 2011 William Davis (24) Claudia got this letter from her health insurance company:Dear Ms. ------,Based on a recent review of your cholesterol panel of January 12, 2011, we feel that you should strongly consider speaking to your doctor about cholesterol treatment.Reducing cholesterol values to healthy levels has been shown to reduce heart attack risk . . . Okay. So the health insurer wants Claudia to take a cholesterol drug in the hopes that it will reduce their exposure to the costs for her future heart catheterization, angioplasty and stent, or bypass surgery. This is understandable, given the extraordinary costs of such hospital services, typically running from $40,000 for a several hour-long outpatient catheterization procedure, to as much as $200,000 for a several day long stay for coronary bypass surgery.So what's the problem? Here are Claudia's most recent lipid values:LDL cholesterol 196 mg/dlHDL 88 mg/dlTriglycerides 37 mg/dlTotal cholesterol 291 mg/dlBy the criteria followed by her health insurer, both total and LDL cholesterol are much too high. Note, of course, that LDL cholesterol was a calculated value, not measured. Here are Claudia's lipoproteins, drawn simultaneously with her lipids:LDL particle number 898 nmol/LSmall LDL particle number less than 90 nmol/L (Values less than 90 are not reported by Liposcience)LDL particle number is, by far and away, the best measure of LDL particles, an actual count of particles, rather than a guesstimate of LDL particles gauged by measuring cholesterol in the low-density fraction of lipoproteins (i.e., LDL cholesterol). It is also measured and is highly reproducible. To convert LDL particle number in nmol/L to an LDL cholesterol-like value in mg/dl, divide by ten (or just drop the last digit). Claudia's measured LDL is therefore 89 mg/dl--54% lower than the crude calculated LDL suggests. This is because virtually all of Claudia's LDL particles are large, with little or no small. This situation throws off the crude assumptions built into the LDL calculation, making it appear that she has very high LDL cholesterol. Do you think that Big Pharma advertises this phenomenon?
Healthy smoothies 15. ožujka 2011 William Davis (51) I've now seen several people who have either caused themselves to be diabetic or to have other phenomena associated with excessive consumption of carbohydrates, all by innocently indulging in a carbohydrate-packed smoothie every morning. Kay, for instance, has a smoothie of a half-pint blueberries, a banana, a scoop of whey, low-fat yogurt, a cup of milk every morning. The rest of her diet was fairly healthy: salads with oil-based dressing for lunch, salmon and asparagus for dinner, only an occasional carbohydrate indulgence outside of her morning smoothie ritual. Yet she had a HbA1c (a reflection of prior 60 to 90 days average blood sugar) at the near-diabetic range of 5.9%. The mistake most people make when making smoothies is relying too heavily on carbohydrates like fruit. A smoothie like the one made by Kay can easily top 50, 60, or 70 grams carbohydrates per serving, more than sufficient to send blood sugars up to 150 mg/dl or more. So what can you put in your smoothie and not send you over the edge to diabetes, small LDL, and all the other undesirable phenomena of excessive carbohydrates? Here's a list:--coconut milk, unsweetened almond milk. Less desirable: milk, full-fat soymilk--ground flaxseed--oils: flaxseed oil, coconut oil (melted), extra-light olive oil, walnut oil--dried coconut--extracts: vanilla, almond, coconut, cherry, hazelnut--spices: cinnamon, nutmeg, ginger--herbs: mint leaves, cilantro--cocoa powder (unsweetened)--nut or seed butters (peanut butter, almond butter, sunflower seed butter)--tofu--exotic ingredients (ingredients you wouldn't expect in a smoothie): spinach, kale, cucumberHow do you sweeten a smoothie? This is what trips up most people. If you resort to fruit like bananas, pineapple, or apple, you will readily send your blood sugar skyward. Honey, agave syrup, and sugar, of course, all increase blood sugar and/or have the adverse effects of fructose. Be careful of yogurt, also, for similar reasons. Therefore, to sweeten your smoothie, consider:--Small servings of berries, e.g., 8-10 blueberries, 2 strawberries, a few wedges of apple, half a kiwi--Non-nutritive sweeteners like stevia, Truvia, sucralose, xylitol, erythritol. Also, sugar-free (sucralose-based) syrups like those from DaVinci and Torani are useful. (Just be aware that non-nutritive sweeteners can increase appetite--use sparingly.)Also, note that, if you have divorced yourself from wheat, cornstarch, and sugars, your desire for sweet should be much reduced. Foods other people find just right will taste sickeningly sweet to you. You might therefore find that foods like peanut butter or coconut milk have a mild natural sweetness; added sweetness is only minimally necessary. Coming next: I'll share a smoothie recipe or two of mine. Anyone want to share a recipe?
Insulin secretagogue 14. ožujka 2011 William Davis (34) Dairy products have the peculiar property of triggering pancreatic release of insulin. The research group at Lund University in Sweden have contributed the most to documenting this phenomenon:Mean (±SEM) incremental changes (?) in serum insulin in response to equal amounts of carbohydrate from a white-wheat-bread reference meal (x) and test meals of whey (?), milk (?), cheese (?), cod (?), gluten-low (?), and gluten-high (?) meals. From Nilsson 2004.Note that it is the area under the curve (AUC), not the peak value, that assumes greatest importance. Dairy products, especially milk, whey, and yogurt, are insulin secretagogues: they stimulate pancreatic release of insulin. The effect is likely due to amino acids and/or polypeptides in dairy products. (The effect is less prominent with cheese. Also see this study.)By conventional wisdom, this may be a good thing, since the excess insulin will blunt the glucose rise after consumption. However, in my book, this is not such a good thing, since most of us have tired, beaten, overworked pancreatic beta cells from our decades of carbohydrate overconsumption. I fear that the effect of dairy products just take us a bit closer to beta cell failure: diabetes. Good news: The effect is least with cheese.
Be gluten-free without "gluten-free" 9. ožujka 2011 William Davis (23) While I've discussed this before, it is such a confusing issue that I'd like to discuss it again.I advocate wheat elimination because consumption of products made from modern dwarf Triticum aestivum:--Triggers formation of extravagant quantities of small LDL and LDL particle number (or apoprotein B)--Triggers inflammatory phenomena like c-reactive protein, increases leptin resistance, and reduction of the protective adipocytokine, adiponectin.--Encourages accumulation of deep visceral fat ("wheat belly") that is inflammatory and causes resistance to insulin--Increases blood sugar more than nearly all other foods--higher than a Milky Way bar, higher than a Snickers bar, higher than table sugar. --Is being linked to a growing number of immune-mediated diseases, including celiac disease (quadrupled over past 50 years), type 1 diabetes in children, and cerebellar ataxia and peripheral neuropathies. This last group of wheat-related phenomena are primarily due to gluten, the collection of 50+ proteins found in each wheat plant. For this reason, people diagnosed with celiac disease are advised to eliminate gluten from wheat and other sources (barley, rye, triticale, bulgur) and to eat gluten-free foods. Gluten-free has therefore come to be viewed as wheat-free and problem-free. It ain't so. Among the few foods that increase blood glucose higher than wheat: cornstarch, rice starch, potato starch, and tapioca starch--Yup: the ingredients commonly used to replace wheat in gluten-free foods. They are also flagrant triggers of the small LDL pattern, along with increased triglycerides, reduced HDL, increased visceral fat, increased blood pressure. In short, gluten-free foods lack the immune and brain effects of wheat gluten, but still make you fat, hypertensive, and diabetic. I tell patients to view gluten-free foods like jelly beans: Gluten-free pancakes, muffins, breads, etc. are indulgences, not healthy replacements for wheat. It's okay to have a few jelly beans now and then. But they should not be part of a frequent or daily routine. Same with gluten-free foods.