Honey: More fructose than high-fructose corn syrup 11. 八月 2009 William Davis (21) Honey: It’s natural. Mom probably gave it to you, either straight or in tea for a sore throat when you were a kid. Even today, honey is touted as possessing almost supernatural qualities for promoting health. Honey contains B vitamins, minerals, and a handful of antioxidants. It also contains . . . fructose. 60% of honey, in fact, is fructose. While the average per capita intake of honey is only a modest 1.29 lb per year (National Honey Board; 2008) and therefore contributes only 0.77 lb of fructose per year, there are people who, believing honey to be healthy, use it to excess and use far more than 1.29 lb per year. How does that compare to table sugar, or sucrose? Sucrose is 50:50 glucose to fructose. How about high-fructose corn syrup, the sweetener found in virtually all processed foods that has replaced sucrose as the most common sweetener? Depending on the variety, high-fructose corn syrup is generally 42-55% fructose. Many of us (including me) believe that the proliferation of high-fructose corn syrup in processed foods is a big part of the reason Americans are fat and diabetic. Yes: Judged by its fructose content, honey is worse than high-fructose corn syrup. It is also worse than sucrose. It means that honey can also contribute to the adverse health effects of fructose, as detailed in this prior Heart Scan Blog post.
Sun, fish, and seaweed 8. 八月 2009 William Davis (9) Extraordinary heart health springs from three basic sources in our environment: Sun, fish, and seaweed. Sun: Sunlight exposure is nature's intended source of vitamin D. Humans were meant to run naked, or at least scantily clad, in tropical or sub-tropical climates. The large surface area of skin ensured plenty of skin activation of vitamin D, along with long days of intense sun (unlike the seasonal variation of day length and less intense sun further north).Fish: Fish are the principal source of omega-3 fatty acids, as are, to a lesser degree, wild land animals. Humans as hunter-gatherers tracked, captured, and slaughtered fish and wild game, eaten immediately, since there was no means of storage. Omega-3-rich game was the principal source of fat for primitive cultures. Seaweed: Seaweed is the world’s most concentrated source of iodine. While seafood like fish and shellfish also contain iodine, seaweed contains, on average, a thousand-fold greater quantity. Seaweed, like plants found on land, are also rich in phytonutrients. The healthiest cultures on earth follow this simple recipe for health. The unhealthiest population on earth-meaning Americans (i.e., without benefit of bail-out medications and procedures that keep us alive, or vaccinations that protect us from infectious diseases)--neglect all three. Witness the Okinawans, whose daily meals nearly always contain some form of fish and seaweed, and whose sub-tropical climate provides greater sun exposure. It is not unusual for Okinawans to live to 100 years of age, not as an exception, but the rule. Heart disease was virtually unknown except in 90-year olds and older-that is, until the recent adoption of Western practices like fast food and snacks.It's pretty incredible when you think about it: Simple practices can markedly reduce your likelihood of heart attack and developing heart disease. Perhaps you’d rather not run naked along a semi-tropical beach, spear fish, and gather seaweed. You could always do the modern equivalents and achieve similar benefits.
Glycemic index: A flawed concept 7. 八月 2009 William Davis (0) Kallio P et al Am J Clin Nutr 2008Squares = rye bread, circles = oat bread
Fructose is a coronary risk factor 4. 八月 2009 William Davis (21) As discussed in a previous Heart Scan Blog post, Say Goodbye to Fructose, a carefully-conducted University of California study demonstrated that, compared to glucose, fructose induces:1) Four-fold greater intra-abdominal fat accumulation2) 13.9% increase in LDL cholesterol, doubled Apoprotein B 3) 44.9% increase in small LDL, 3-fold more than glucose 4) Increased postprandial triglycerides 99.2%.Other studies have shown that fructose:--Increases uric acid--No longer is red meat the cause for increased uric acid; fructose has taken its place. Uric acid may act as an independent coronary risk factor and increases high blood pressure and kidney disease. --Induces insulin resistance, the situation that creates diabetes--Increases glycation (fructose linked to proteins) and protein cross-linking, processes that underlie atherosclerosis, liver disease, and cataracts. Make no mistake: Fructose is a powerful coronary risk factor. There is no doubt whatsoever that a diet rich in fructose from fruit drinks, honey, raisins and other dried fruit like cranberries, sucrose (table sugar), and high-fructose corn syrup is a high-risk path to heart disease. Also note that many foods labeled "heart healthy" because of low-fat, low saturated fat, addition of sterol esters, or fiber, also contain fructose sources, especially high-fructose corn syrup.
Who lost weight? 1. 八月 2009 William Davis (30) The results of the latest Heart Scan Blog poll are in.I went wheat-free and I . . . Gained weight 6 (3%)Lost no weight 41 (21%)Lost less than 10 lbs 28 (14%)Lost more than 10 lbs 34 (17%)Lost more than 20 lbs 22 (11%)Lost more than 30 lbs 28 (14%)I'm still losing weight! 30 (15%)(189 respondents)This means that, by eliminating wheat:24% had no success31% had moderate success (less than 10 lbs or more than 10 lbs)25% had extravagant results with 20 lbs or more lostIt would be interesting to know where along the weight-loss spectrum the last category, "I'm still losing weight," group falls. (Anyone with a good story please speak up!)I believe we can conclude from this casual exercise that, as a simple strategy, wheat elimination is surprisingly effective. Why would 3% gain weight? Well, without knowing the details, there are several possible explanations:1) Weight gain developed through other foods. For instance, I've had people eliminate wheat only to replace it with fattening gluten-free alternatives. Remember: wheat-free is not gluten-free. Others load up on the wrong foods, e.g., Craisins and other dried fruit; overdo dairy; or snack on wheat-free but unhealthy foods like ice cream and chips. 2) Too much alcohol3) Hypothyroidism--A lot more common than you'd think. In fact, this has been the case with a majority of people who have done everything right, yet either failed to lose weight or gained weight. Those are the biggies. I'd like to hear your personal stories of wheat elimination--the ups and downs, your success or failure, how you felt during the process, how easy or difficult, your eventual results. Just post them as a response to this blog post.
A niacin primer 29. 七月 2009 William Davis (19) A reader of Life Extension reminded me of a piece I wrote about niacin a couple of years back. Anyone desiring a primer on how and why to use niacin to correct lipid and lipoprotein patterns might find this useful. While some people, no matter what they do, cannot tolerate niacin (about 10% of people), many others enjoy spectacular benefits. Q: I recently had a cholesterol profile blood test and learned that I may be at risk of heart disease because my levels of beneficial HDL (high-density lipoprotein) are too low. I read that niacin could help increase my HDL, but my doctor said niacin is dangerous. Whom should I believe?A: Your doctor would be right—if we were still living in 1985. Since then, however, we have learned how to use niacin (vitamin B3) safely and effectively. Unfortunately, many physicians have not yet caught up, or are still trapped by the idea that cholesterol-lowering statin drugs are the only way to decrease cardiovascular disease risk. I have personally prescribed niacin for thousands of patients as part of our program to reverse coronary disease. In fact, niacin is the closest thing we have available to a perfect treatment that corrects most of the causes of coronary heart disease.Continued here.
What would life be like . . . ? 29. 七月 2009 William Davis (16) What if coronary heart disease could be prevented--no eliminated--applying methods that were accessible, easy, and cheap? What if coronary heart disease and, thereby, angina, heart attack, sudden cardiac death, ventricular tachycardia, heart failure, and the cerebrovascular equivalent, stroke, could be eliminated using readily available tools available to virtually everyone in the U.S.? And, over a year, it cost less than a once-a-week latte at Starbucks? How would the healthcare landscape change? What would become of hospitals, manufacturers of the billions of dollars of hospital equipment necessary to supply the cardiovascular hospital industry (e.g., stent manufacturers, catheter manufacturers, defibrillator and pacemaker manufacturers, pharmaceutical manufacturers who no longer have to produce the volume of antiplatelet agents, inotropic drugs, antiarrhythmic agents, etc.)? How would our lives change? What would the end of life look like if people stopped dying of heart attack, sudden cardiac death, congestive heart failure at age 55, 65, or 75, but lived out their lives to die of something unrelated?What if the solution had little or nothing to do with drugs but evolved from simple nutritional strategies, supplements meant to correct the deficiencies that accompany modern lifestyles, and a few unique strategies targeted towards the genetic predispositions that lead to heart disease? What if all this were possible at a cost of a few hundred dollars per year? It would certainly be a cataclysmic change. Hospitals would shrink to a small remnant of their current gargantuan, dozens-per-city presence. The need for hospital staff would be slashed by over half. The rare cardiologist would tend to congenital heart disease sufferers and other unusual forms of heart disease and he or she might have a colleague or two in all of a major city. Healthcare costs would plummet, no longer having to sustain the enormous cardiovascular healthcare machine of hospitals, staff, industry, and long-term care. Health insurance, private or public, would drop by 50%. It would free up nearly a trillion dollars that could be redirected towards other pursuits, like schools and research. Extraordinary leaps forward in quality of life and science would emerge, given that magnitude of funding. It's not as grand a thought experiment as Alan Weisman's The World Without Us, in which he imagines what the world would be like without humans altogether. How long would it take to recover lost ground and restore Eden to the way it must have gleamed and smelled the day before Adam, or Homo habilis, appeared? Could nature ever obliterate all our traces? How would it undo our monumental cities and public works, and reduce our myriad plastics and toxic synthetics back to benign, basic elements? But I believe this thought experiment--what would life be like without heart disease because it was eliminated using inexpensive tools-- is more plausible, more likely to occur. In fact, it has already begun to occur. See those vines growing up the side of the hospital?
Are jelly beans heart healthy? 27. 七月 2009 William Davis (0) Total Fat 3 g or less Less than 6.5 g Saturated Fat1 g or less 1 g or less Cholesterol 20 mg or less20 mg or less Sodium 480 mg or less per RACC* & labeled serving480 mg or less per RACC* & labeled servingNutrients Contain 10 percent or more of the daily value of 1 of 6 nutrients; vitamin A, vitamin C, iron, calcium, protein or dietary fiber Contain 10 percent or more of the daily value of 1of 6 nutrients; vitamin A, vitamin C, iron, calcium, protein or dietary fiber Trans fat Less than 0.5 g per RACC* and labeled serving Less than 0.5 g per RACC* and labeled serving Whole Grain N/A 51 percent by weight/RACC* Minimum Dietary Fiber N/A1.7 g/RACC of 30 g2.5 g/RACC of 45 g2.8 g/RACC of 50 g3.0 g/RACC of 55 g(RACC=Reference Amount Customarily Consumed)
Thyroid correction: The woeful prevailing standard 27. 七月 2009 William Davis (16) Rich has been taking Synthroid or levothyroxine for many years. When Rich came to my office for continuing management 10 years after his bypass surgery, I checked his thyroid panel:TSH 7.44 uIU/LFree T4 1.88 ng/dl (Ref range 0.80-1.90 ng/dl)Free T3 2.0 pg/ml (Ref range 2.3-4.2 pg/ml)Rich's thyroid hormone distortions--high TSH, low T3--are sufficient to account for a tripling of heart attack risk long-term. As Richs' thyroid was being managed by his primary care physician, I notified this doctor of Rich's panel. He therefore increased Rich's levothyroxine from 75 mcg per day to 100 mcg per day. Another thyroid panel several months later showed:TSH 0.98 uIU/LFree T4 2.38 ng/dlFree T3 2.0 pg/ml As you would expect, increasing the intake of the T4 hormone (levothyroxine) increased free T4 and suppressed TSH. But what about T3? It's unchanged. Indeed, Rich says that he feels no better and, in fact, wakes up in the morning foggy and requires a nap in the afternoon. In my experience, the majority (approximately 70%, but not 100%) experience subjective improvement when T3 is added in some form and the free T3 level is increased. While the data (summarized here) are conflicted on whether there is objective benefit to T3 management and supplementation, there seems to be a poorly-quantified subjective improvement. Rich's increased levothyroxine dose decreased (calculated) LDL cholesterol by 10 mg/dl. Based on my experience, I'll bet that his lipid panel would likely be further improved with T3 correction. What I find incredible is the absolutely rabid resistance waged by primary care physicians and endocrinologists against this notion of T3, mostly due to fears of the remote likelihood of inducing atrial fibrillation and osteoporosis, while they are ready to prescribe lifelong statin drugs without a moment's hesitation.
Launch of new Track Your Plaque newsletter: Cardiac Confidential 27. 七月 2009 William Davis (3) Track Your Plaque has just launched a new version of our newsletter. We call it Cardiac Confidential.Cardiac Confidential is meant to be a no-holds-barred, go-for-the-throat exposé of the world of heart disease. We will expose the dishonest, reveal what we view as the underlying truth. We'll even have an occasional "undercover" report of what goes on in hospitals and the go-for-the-money world of heart procedures. Read the first issue here (open to everyone) in which "Laurie" describes her encounter with a sleazy, profiteering cardiologist. She survives, but not without paying a dear price.