Why healthy can make us fat 13. сентября 2007 William Davis (0) Brian Wansink, author of Mindless Eating: Why we eat more than we think (see yesterday's Heart Scan Blog post), also has a Blog. Despite the bland advice offered on much of the Prevention Magazine and website, Wansink's Food Think Blog is a winner. In a recent post, Wansink quotes a report from Science Daily that described a study he recently published in the Journal of Consumer Research. Wansink's study describes how just applying the label "healthy" to fast food choices increased consumers' calorie intake: "When we see a fast-food restaurant like Subway advertising its low-calorie sandwiches, we think, 'It's OK: I can eat a sandwich there and then have a high-calorie dessert,' when, in fact, some Subway sandwiches contain more calories than a Big Mac."In one study, Chandon and Wansink had consumers guess how many calories are in sandwiches from two restaurants. They estimated that sandwiches contain 35% fewer calories when they come from restaurants claiming to be healthy than when they are from restaurants not making this claim.The result of this calorie underestimation? Consumers then chose beverages, side dishes, and desserts containing up to 131% more calories when the main course was positioned as "healthy" compared to when it was not--even though, in the study, the "healthy" main course already contained 50% more calories than the "unhealthy" one. "These studies help explain why the success of fast-food restaurants serving lower-calorie foods has not led to the expected reduction in total calorie intake and in obesity rates," the authors write.Interesting. In fact, I've had many patients say that they eat at Subway or similar chains and choose the "healthy" options. "That's got to be better than a cheeseburger and fries!" Perhaps not. (Of course, you can't leave Subway or other fast food operation feasting on wheat products.) Wansink can be counted on for some truly fascinating observations into many behaviors that are subconscious but explain at least part of the reason why we're so fat. Though his Blog has a relatively short history of posts, there's lots of great commentary. Pierre Chandon and Brian Wansink. "The Biasing Health Halos of Fast Food Restaurant Health Claims: Lower Calorie Estimates and Higher Side-Dish Consumption Intentions" Journal of Consumer Research, October 2007.
Outsmarting the enemy 12. сентября 2007 William Davis (2) "Everyone--every single one of us--eats how much we eat largely because of what's around us. We overeat not because of hunger but because of family and friends, packages and plates, names and numbers, labels and lights, colors and candles, shapes and smells, distractions and distances, cupboards and containers. This list is almost as endless as it's invisible. Invisible?Most of us are blissfully unaware of what influences how much we eat . . . We all think we're too smart to be tricked by packages, lighting, or plates. We might acknowledge that others could be tricked, but not us. That is what makes mindless eating so dangerous. We are almost never aware that it is happening to us." So opens Brian Wansink's book, Mindless Eating: Why we eat more than we think. Wansink studies consumer behavior at Cornell University. He's the guy who scrutinizes in excruciating detail why we eat what we do, what factors determine what we eat like food color and smell, the company we keep, product packaging. He works without food industry funding, though there are plenty of researchers who do this sort of research funded by the likes of Kraft, Nabisco, and Kellogg's.His book is packed full of the conclusions he and his team have come to over the years studying our buying and eating habits. While this information could (and is) be easily used by the food industry to coerce us to eat more and more, understanding many of the concepts Wansink talks about can also open your eyes to their clever tactics. He especially details how our internal satiety signals fail us when external cues are present that easily trip us up. He talks about one experiment he ran in which soup bowls were rigged with concealed rubber tubes in the bottom that continually replenished the soup as the person consumed it. Thus, with the bowl continually refilled, the eater had no idea how much he or she had consumed. When the quantity of soup eaten from the endless bowl was compared to people eating from standard bowls, there was as much as a three-fold increase in the quantity and calories eaten. Just be aware that, while Wansink is an expert in consumer eating behavior, he is not necessarily an expert in nutrition. Just as a card shark can show you lots of clever tricks to hoodwink your opponent, he might not be the best person to teach you how to play bridge. For a great hint at some of the interesting and all-too-human observations Wansink makes, the online Prevention Magazine posted a brief video:http://link.brightcove.com/services/link/bcpid1155399889/bclid1171884988/bctid1113465050 We might not be able to stop Big Food from selling garbage foods, but we can at least be armed with insight into how we are subconsciously coerced into eating more.
Test Of Scanner Saves A Doctor's Life 11. сентября 2007 William Davis (5) Read the story online at http://www.courant.com/news/health/hc-luckydoc.artsep10,0,7572510.story?coll=hc_features_promoI personally hate these stories, the ones that turn heart scans into drama by describing how someone had a heart scan, then turned out to have so much coronary plaque that they had to have bypass surgery. But I point this one out because the story is related in an interesting way. It highlights the utter ignorance that operates in heart disease detection.The story highlights how a 50-year-old, 5 ft 8, 150 lb slender, exercising neurologist underwent a CT coronary angiogram in a newly installed device in a Hartford, Connecticut hospital (not a heart scan) that detected entirely unsuspected severe and diffuse coronary disease. You know the rest: abnormal stress test, heart catheterization, bypass surgery of the hapless doctor-now-patient, followed by grateful patient saying things like "This machine saved my life."It probably is true. You've seen these stories before. I've witnessed these sorts of headline-makers for the past decade. I remain surprised that it still happens. The doctor is not some ignorant, uninformed man who can't even fill out his income tax forms. Yet how does a man like this walk around with life-threatening disease and not know it? Why does it still make headlines? Anyway, despite all my jawing about heart scans and early heart disease detection, many physicians and the public remain in the stone age of heart disease. Even though this neurologist's story made headlines, the many other people who 1) identified their heart disease earlier with a simple heart scan, then 2) took action to put a stop to it, do not make headlines. But that's the way to go.Why isn't the rest of the story being told? Why was this man's heart disease uncovered only in its late phases? Hartford, Connecticut is not some backwater. I've been there. It's a major city with large hospitals and a University Medical Center. But a professional with presumed knowledge of health and his doctor(s) allowed this to happen?In other words, this is not a story of success, but of failure--failure to identify coronary disease years earlier when preventive action would have prevented bypass. But that's not such a compelling headline, is it? As an aside, I'll bet you that this man has lipoprotein(a), a severe small LDL pattern, and severe deficiency of vitamin D. Correct these and it's unlikely he'll need bypass again. But that's kind of boring, isn't it?
The great food industry deception 8. сентября 2007 William Davis (1) I'd forgotten what a powerful report Peter Jennings and ABC News produced about the enormous deception perpetrated by the food industry and its effects on health until Dr. Joe Mercola posted the YouTube clips from the report on Mercola.com. (This is not meant to be an endorsement of everything Dr. Mercola has to say. He says lots of things; I agree with only a fraction of it. But this is a gem.) Although made in 2004, the report remains every bit as relevant today as it was then. It concerns me deeply that, despite reports like this being broadcast to Americans, the obesity epidemic continues unabated. In fact, it's worse just in the short three years since then. Be aware of what the food industry is up to. They intensively market high profit margin foods to us--and especially our children--to increase sales. As Jennings points out, the U.S. government (USDA) is, for a variety of reasons both good and bad, complicit with this massive deception. While many media reports continue to focus on lack of exercise as the root cause for the obesity epidemic, it is really the active and purposeful selling of processed junk foods to Americans that is principally to blame. By the way, how many of these foods proudly boast the American Heart Association Check Mark of approval? Part 1Part 2Part 3Part 4Part 5
Dr. Joseph Prendergast and l-arginine 7. сентября 2007 William Davis (21) In response to a discussion started by Track Your Plaque Member, Rich, on the Member Forum, I tracked down Dr. Joseph Prendergast, who had posted a video on his unique experiences, both personal and professional, with l-arginine. Dr. Prendergast describes some of this in a brief webcast. Here, I quote Rich:“This 90-second video by a Palo Alto physician (internal/endocrine, diabetes specialist) will totally blow your mind.http://enews.endocrinemetabolic.com/2007/08/16-12-years.htmlYou will see in the link below that he reversed his personal atherosclerotic disease, diagnosed in abdominal aorta at age 37—completely reversed. He's now much older."http://www.endocrinemetabolic.com/about/press/larginine.pdfI contacted Dr. Prendergast to find out more. Dr. Joseph Predergast is founder of the Endocrine Metabolic Medical Center in Palo Alto, California, focused on providing care for people with diabetes. In addition to the website, he provides Blogs and newsletters, though most of his conversation is about diabetes issues. Dr. Predergast’s website is located at http://www.endocrinemetabolic.com.I asked Dr. Prendergast several questions about his l-arginine experience. His brief answers are below.1) What dose of l-arginine have you employed in your patients and why this dose? The dose is 3 - 6 grams as suggested by the Stanford Cardiovascular Research Department Chairman John Cooke. http://med.stanford.edu/profiles/John_Cooke/ 2) I gather that you have preference for specific preparations of l-arginine. Can you say why some preparations seem superior to others in your experience?I started with pharmaceutical l-arginine from the pharmacy. I gradually began to add components that would augment the power of the l-arginine and have gone through 12–15 different products. I have completely reversed my own very severe atherosclerosis discovered at age 37 and there has been less than 0.05% cardiovascular disease in my endocrine practice in almost 17 years. Both my exams were evaluated with CT technology. I am now using ProArgi9 Plus that includes several anti-aging components and will likely never switch. http://www.synergyworldwide.com/synergycorp/home.aspx 3) Are you employing any other unique practices in your patients to reduce cardiovascular events? Withdrawing as many prescription drugs as possible.Interesting. Of course, I also advocate l-arginine as a facilitator of atherosclerotic plaque regression, though I am not as ebullient about its use as Dr. Prendergast. Instead, I see l-arginine as a method that yields forced normalization of “endothelial dysfunction,” the abnormal constriction and other effects that develop when abnormal lipoproteins and unhealthy food by-products are present in the circulation. Endothelial dysfunction is an inevitable accompaniment of plaque. However, unlike Dr. Predergast’s experience, despite our use of doses higher than he uses, I have never seen plaque regression just using l-arginine alone. Nonetheless, it’s good to hear that others are seeing at least some positive effects. By the way, we have also had some positive posts on our Forum about the ProArgi9 product he uses.
Dr. Dwight Lundell on omega-3s and CLA 7. сентября 2007 William Davis (15) An interview with Dr. Dwight Lundell, cardiac surgeon and author of the new book, "The Cure for Heart Disease."Dr. Lundell comes to us with a unique pedigree. He is a cardiothoracic surgeon practicing in the Phoenix, Arizona, area. Despite having performed thousands of coronary bypass operations, including numerous "off-pump" procedures earning him a place in the Beating Heart Hall of Fame and a listing in Phoenix Magazine’s Top Doctors for 10 years, more recently Dr. Lundell has turned his attentions away from traditional surgical treatment and towards prevention of heart disease and.In particular, Dr. Lundell is a vocal advocate for omega-3 fatty acids from fish oil and conjugated linoleic acid, or CLA.When I heard about Dr. Lundell’s unique perspectives, I asked him if he’d like to tell us a little more about his ideas. Here follows a brief interview with Dr. Lundell. You’re a vocal advocate of the role of omega-3 fatty acids from fish oil in heart disease prevention. Can you tell us how you use it? In my book, I recommend 3 g of fish oil daily. This would normally yield about 1000 mg of EPA and DHA depending on the concentration of the supplement. This is approximately the dose that reduced sudden cardiac death by 50%, and all cause death, by 25% in patients with previous heart attack. In patients with signs of chronic inflammation such as heart disease, obesity, arthritis, metabolic syndrome or depression or in those patients with elevation of CRP, I would recommend higher doses, 2000 to 3000 mg per day of EPA and DHA. The FDA has approved up to 3400 mg for treating patients with severely elevated triglycerides.I personally take a 2000 mg EPA and DHA per day because I have calcium in my coronary arteries.Of course, in the Track Your Plaque program we track coronary calcium scores. Do you track any measures of atherosclerosis in your patients to chart progression or regression? Carotid ultrasound with measurement of IMT [intimal-medial thickness] has been shown to be a good surrogate marker for coronary disease, as has vascular reactivity in the arm. CT scanning with calcium scoring is a direct marker of coronary disease. CT does not differentiate between stable or unstable plaque but there is no good noninvasive way of doing this. The dramatic value of CT scan calcium scoring is to demonstrate to people that they actually do have coronary disease and to motivate them to make the necessary lifestyle and nutritional changes to reduce it. CT scan with calcium scoring is a direct way to measure the progression or regression of coronary artery disease. If there is a choice between a direct measurement and indirect measurement, always choose the direct method.Every patient treated with CLA in my clinic, experienced significant reductions in C-reactive protein. These patients were also on a weight-loss program, so I can't prove whether it was the CLA or the weight-loss that improved their inflammatory markers. In the animal model for arteriosclerosis, CLA has a dramatic effect of reducing and preventing plaque. This has not yet been proven in humans.Normally, when people lose weight 20% or more of the loss is lean body mass (muscle) this lowers the metabolic rate and frustrates further weight-loss. My patient, from teenagers to retirees, lost no lean body mass and continued to have satisfactory weight-loss when CLA was used as part of the plan.In reading your book, your use of conjugated linoleic acid (CLA) as a principal ingredient struck me. Can you elaborate on why you choose to have your patients take CLA?My enthusiasm for CLA is based on:1) Safety?this is of paramount importance. Animal toxicity studies have been done, as well as multiple parameters measured in human studies, both of these are well reviewed recently in the American Journal of Clinical Nutrition (2004:79(suppl)1132s). CLA, a naturally-occurring substance, is not toxic or harmful to animals or humans. The only negative report is by Riserus in Circulation (2002), where he found an elevated c- reactive protein; however, he used a preparation that is not commercially available and not found in nature as a single isomer.2) Effectiveness?also critically important. A recent meta-analysis [a reanalysis of compiled data] in the American Journal of Clinical Nutrition (2007; 85:1203-1211) demonstrated the effectiveness of CLA in causing loss of body fat in humans. The study also reconfirmed the safety of CLA.Since we now know that atherosclerosis is an inflammatory disorder, any strategy that reduces low-grade inflammation without significant side effects would seem to be beneficial in the treatment and prevention of atherosclerosis. CLA not only has antioxidant properties, but it modulates inflammatory cascade at multiple points. CLA reduces PGE2 (in much the same way as omega-3) CLA also has been shown to reduce IL-2, tumor necrosis factor-alpha and Cox–2. It reduces platelet deposition and macrophage accumulation in plaques. It also has some beneficial effect in the PPAR [peroxisome proliferator-activated receptors, important for lipid and inflammatory-mediator metabolism] area.Part of the effect of CLA may be because it reduces fat mass and thus the amount of pro-inflammatory cytokines produced by fat cells.I reiterate and fully admit that CLA has not been shown to have any effect on atherosclerosis in human beings. However, the results in the standard animal models for atherosclerosis (rabbits, hamsters,APO-E knockout mice) are very dramatic.From all I know, it appears that the effective dose for weight loss and the animal studies in atherosclerosis would be equal to about 3 g of CLA per day. The anti-inflammatory properties of CLA seem to work better in the presence of adequate blood levels of omega-3.I’m curious how and why a busy cardiothoracic surgeon would transform his practice so dramatically. Was there a specific event that triggered your change? The transition from a very busy surgical practice to writing and speaking about the prevention of coronary disease has not been particularly easy, but it has been very interesting. I can't really point to any specific epiphany, it was a general feeling of frustration that we were not making any progress in curing heart disease, which is what I thought I was doing when I began my medical career. Of course, I enjoyed the technical advances, the dramatic life-saving things that you do and I did on a daily basis. American medicine is spectacularly good at managing crises and spectacularly horrible at preventing those crises. The lipid hypothesis is old and tired, even the most aggressive statin therapy reduces risk of heart attack by about 30% in a relatively small subset of people. It's interesting that we're now looking at statins as an anti-inflammatory agent.Thanks, Dr. Lundell. We look forward to future conversations as your experience with CLA and heart disease prevention and reversal develops!More about Dr. Lundell's book, The Cure for Heart Disease can be found at http://www.thecureforheartdisease.net. Note: We are planning a full Special Report on CLA for the Track Your Plaque website in future.
High-tech heart attack proofing 5. сентября 2007 William Davis (7) I was reminiscing the other day about what I was taught about heart disease in medical school some 20 years ago.In the 1980s, the world was still (and remains) fascinated with this (then) novel "solution" to heart disease called coronary bypass surgery. As medical students, we all fought for a chance to watch a bypass operation being performed. And there was lots of opportunity. I was a medical student at St. Louis University School of Medicine, a center that boasted of a busy thoracic surgery service, performing up to 10 bypass operations every day. Back then, coronary angioplasty was just a twinkle in Andreas Gruentzig's eye, still contemplating whether it was possible to put an inflatable device in the blockages of coronary arteries to re-establish blood flow. Risk detection for heart disease consisted of EKGs, screening for symptoms, detection of heart failure, and tests that are long forgotten in the dust bin of medical curiosities, tests like systolic-time intervals, phonocardiography (using amplified sound to detect abnormal heart sounds), and detailed physical examination. Treatment for heart attack involved nitroglycerin and extended bedrest. Bypass surgery would come after you recovered. In other words, NONE of the tools we now use in the Track Your Plaque program for heart disease control and reversal were available just twenty years ago. There was no lipoprotein testing, no CT heart scans. Nobody recognized the power of omega-3 fatty acids (although epidemiologic observations were just beginning to suggest that eating fish might be the source of reduced risk for heart attack and cardiovascular death). Vitamin D? Why, that's in your milk so your babies don't get rickets. So much of what we do today was not available then, nor were they even in the crystal ball of forward-looking people. I certainly had no idea whatsoever that I'd be talking and obsessing today about reversal of heart disease based on what I saw and learned back then. Things have certainly come a long way and all for the better. The problem is that much of the world is stuck in 1985 and haven't yet heard that coronary disease is a manageable and reversible process. They've been sidetracked by the fiction propagated by the likes of Dr. Dean Ornish, the nonsense of low-fat diets aided and abetted by the food manufacturing industry and the USDA, the extravagant claims of some practitioners and the supplement industry. They haven't yet stumbled on the real-life experiences that are chronicled here in this Blog and the accompanying Track Your Plaque website. Our program has been criticized for being too "high-tech," involving too many sophisticated measures like small LDL, lipoprotein(a) treatment, vitamin D blood levels. But when you see a woman reduce her heart scan score 63%, or a school principal's score plummet 51%, then that's reward in itself.
It's all about plaque 5. сентября 2007 William Davis (0) Just to keep my finger on the pulse of what is being said in the world of heart disease by the media, I subscribe to many publications. Conversations abound about cholesterol, low-fat diets, now low-carb diets, not smoking, inflammation, etc. No doubt, these all have some importance in the conversation. But the great majority of discussions fail to identify the one truly crucial factor to identify and track: coronary atherosclerotic plaque.
Sugar for breakfast 2. сентября 2007 William Davis (17) We were reviewing Stuart's diet because of his persistent small LDL, low HDL, modestly elevated triglycerides, and blood sugar of 107 mg/dl. "I've changed my diet, doc. No kidding. We never fry our foods. No butter, no goodies. I don't know what else I can possibly do.""Okay. Let's review your diet. What did you have for breakfast?" "Orange juice, a big glass. Gotta get my potassium. Then cereal like Cheerios or Shredded Wheat, sometimes Kashi or Raisin Bran, always in skim milk. Gotta have my one slice of toast, no butter. I'll put some fruit preserves on it. You know, real fruit. Only whole wheat bread, never white. On Sundays, we always go out for pancakes, but now we order only whole wheat."Many of us have gotten into a peculiar habit: Having what amounts to pure sugar for breakfast. Perhaps there's a little fiber thrown in with it, but many people indulge in breakfasts that are sugar and plenty of it. That's precisely what Stuart is doing: A breakfast that, while it doesn't contain a huge amount of sugar outside of the orange juice, is promptly converted to sugar. If we were to check his blood sugar just after his standard breakfast, it would rise substantially. This pattern has become deeply ingrained into the American psyche. Some people will act like I've suggested we overthrow the government when I suggest that breakfast cereals need to be eliminated from their lives. We all share memories of Tony the Tiger, the leprechaun on Lucky Charms ("They're magically delicious!), reading the brightly colored boxes often including games and prizes. Breakfast cereals seem as American as apple pie. But the wheat and corn content ensures a big rise in blood sugar, the sort that create small LDL, low HDL, etc.--all the patterns Stuart is showing--and make us fat. Orange juice? Too much sugar all at once. Get your potassium from whole vegetables and fruits, not from orange juice. (Bananas are another problem source of potassium for similar reasons despite being a whole fruit.) Toast? Any diabetic who monitors their blood sugar after meals will tell you: Even one slice of bread, ANY bread, skyrockets blood sugar. Add the fruit preserves made with sugar syrup and it's doubly worse. Pancakes? Even if made with plenty of fiber, blood sugars go absolutely berserk after a meal like this, especially if maple syrup is added. In other words, the seemingly healthy breakfast Stuart eats guarantees that he fails to control all his patterns that contribute to his coronary plaque growth. After I pointed out Stuart's dietary faux pas, he asked, "Then what the heck can I eat?""There's actually lots of good choices: Eggs (preferably free-range, if available, or the 'omega-3' enriched) or Egg Beaters; oat products, but true oat products like slow-cooked oatmeal, or the best of all, oat bran, used as a hot cereal; ground flaxseed as a hot cereal with added fruit, berries, nuts; a handful of raw almonds, walnuts, pecans; some cheese, preferably traditional fermented cheese and not processed; low-fat cottage cheese; low-fat yogurt that you flavor yourself with berries and nuts; raw seeds like sunflower and pumpkin."Try and save some of your dinner foods for breakfast. For instance, save some green peppers and onions from your salad and put it in your scrambled eggs along with some olive oil. Save some of the chicken and add it to your breakfast. Save some of the cooked vegetables and have them as they are. You'll be surprised how filling dinner foods can be when eaten for breakfast."It's not that tough. But Stuart and many other people need to break the hold that the food manufacturers have created. If you're hoping to seize hold of your heart scan score, get rid of the sugar foods in your morning, even the ones cleverly disguised as healthy.
The Low-Carb Man 31. августа 2007 William Davis (4) If ever there was an enthusiastic disciple of deceased Dr. Robert Atkins of Atkins' Diet fame, it's Mr. Jimmy Moore.Jimmy tells the story of how he was transformed by the Atkins' approach, losing 180 lbs in the course of one year. He continues to develop this conversation, in many ways elaborating on the conversation in more sophisticated ways than even Atkins did in his lifetime. Though we've agreed to disagree on some points of nutrition, Jimmy and I had a recent discussion about heart disease, the mis-guided ways of conventional cardiac care,and the evils of processed carbohydrates. We do differ on the role of saturated fat in heart disease and health, but beyond that difference I was impressed (reading his Blog and listening to his many webcasts) with his level of understanding of the issues. Jimmy is not some over-enthusiastic dieter. He has a grasp of the issues that exceeds that of 99% of my colleagues. If you are interested in reading our discussion or just perusing a really fun, informative Blog/website, go to LivinLaVidaLowCarb.com. The interview is posted at:http://livinlavidalocarb.blogspot.com/2007/08/davis-wanna-cut-plaque-in-your-arteries.htmlSee Jimmy Moore's before and after pictures at http://livinlavidalocarb.blogspot.com/2005/07/my-before-pictures.html. He's quite an entertaining read.