Tori Hudson, N.D. See book keywords and concepts | How dietary fat affects the human breast is still controversial, although some research has looked at low-fat diets in women with fibrocystic breasts and at how low-fat diets affect the hormone levels in these women. Reducing the fat content of the diet to 16 percent of total calories (in contrast to the average American diet of 40 percent fat), while increasing complex carbohydrate consumption, has been shown to reduce the severity of premenstrual breast tenderness and swelling, as well as reduc-
Dietary Recommendations
• Avoid caffeine.
• Decrease dietary fat to 20 percent of calories. | Ann M. Coulston and Carol J. Boushey See book keywords and concepts | Typically, more weight loss occurs with low-carbohydrate diets in the first 6 months when compared with low-fat diets, although this weight-loss difference does not persist by 12 months [56-60]. Concerns regarding an increase in cardiovascular risks with these low-carbohydrate diets do not appear to be as problematic as first thought [58]. These studies have underscored the need to better understand factors that impact study attrition rates as well as individual adherence to any type of weight-loss diet as these two parameters impacted the interpretation of these trial outcomes [58, 59,61].
6. | Hyla Cass, M.D. See book keywords and concepts | Research conducted at Harvard showed that high-carbohydrate, low-fat diets may actually increase the risk of heart disease by reducing the levels of the protective or "good" HDL (high-density lipoprotein) cholesterol in the bloodstream.
There is strong supporting evidence that the low-fat boom led to the current obesity trend. Just look at the numbers. According to the Center for Health Statistics, the American obesity epidemic started in the early 1980s—at the same time that the market was being flooded with low-fat products. Suddenly, the rate of overweight in adults went through the roof. | Bill Sardi See book keywords and concepts | Dietary supplements are the most frequently used preventive aids, though low-fat diets, smoking cessation and other measures are often relied upon. One study showed that 73% of prostate cancer patients used dietary supplements. The most commonly used were multivitamins, vitamin E, vitamin C and calcium. [Urology 66: 161-66, 2005] Men commonly take saw palmetto berry for prostatitis, but not for prostate cancer.
Cancer doctors are talking about the use of vitamin E, selenium, lycopene, saw palmetto, resveratrol, fish oil and vitamin D, to prevent prostate cancer. | Alan R. Gaby, M.D., Jonathan V. Wright, M.D., Forrest Batz, Pharm.D. Rick Chester, RPh., N.D., DipLAc. George Constantine, R.Ph., Ph.D. Linnea D. Thompson, Pharm.D., N.D. See book keywords and concepts | Historically, low-fat diets have been recommended to patients with GERD because fatty foods appeared to be associated with increased heartburn and fatty foods had been shown to weaken the LES in both healthy people and people with GERD.2'3 A number of recent studies, however, have found no correlation between the fat content of a meal and subsequent symptoms of heartburn and reflux.4' 5 Another study found that hospitalizations due to GERD were no more likely for people who ate high-fat diets than for those on low-fat diets. | Connie Bennett, C.H.H.C. with Stephen T. Sinatra, M.D. See book keywords and concepts | How I Found Out That low-fat diets Don't Work, But Cutting Carbs Does
Back in the early 1990s, I, like most of my medical colleagues across the country, wrongly bought into the low-fat craze. We thought that the best way to lose weight was to go on a high-carb diet and to avoid fats like the plague. It made sense to take fat out of the diet because fats are nine calories per gram, and carbohydrates are four calories per gram.
At the time, I was eating lots of pasta, salad, and bread, and I stayed away from all fats. | | High- versus low-fat diets in Human Diseases." Current Opinion in Clinical Nutrition and Metabolic Care 6, no. 2 (2003): 151-55.
Sanjoaquin, M. A., P. N. Appleby, M. Thorogood, J. I. Mann, and T. J. Key. "Nutrition, Lifestyle and Colorectal Cancer Incidence: A Prospective Investigation of 10,998 Vegetarians and Non-vegetarians in the United Kingdom." British Journal of Cancer 90, no. 1 (2004): 118-21.
Saydah, S. H., Catherine M. Loria, Mark S. Eberhardt, and Frederick L. Brancati. "Abnormal Glucose Tolerance and the Risk of Cancer Death in the United States. | Jonny Bowden, M.A., C.N.S. See book keywords and concepts | You can reduce inflammation by consuming omega-3 fatty acids and reducing consumption of grains without the possible statin drug side effects of liver toxicity, and mitochondrial damage, and without the increased risk for death from other causes that is associated with cholesterol numbers that are too low.
Do low-fat diets Prevent Heart Disease?
So, then, what about that famous Dean Ornish study that showed that low-fat diets reverse heart disease?
Actually, it showed no such thing. | Caldwell B. Esselstyn, Jr., M.D. See book keywords and concepts | In early 2006, a report published in The Journal of the American Medical Association resulted in national headlines suggesting that low-fat diets do not decrease health risks. The JAMA article was based on a study, part of the Women's Health Initiative of the National Institutes of Health, which followed nearly 49,000 women over eight years, and it found that those prescribed a "low-fat" diet turned out to have the same rates of heart attacks, strokes, and cancers of the breast and colon as those who ate whatever they wanted. | Ann M. Coulston and Carol J. Boushey See book keywords and concepts | When compared to low-fat diets, the low-carbohydrate diets have been shown to elicit greater weight loss at 6 months (-7.31b versus ?.11b) but at 12 months weight loss is similar between diets [20, 139]. The mechanism by which low-carbohydrate diets promote greater weight loss at 6 months is unclear however several factors have been implicated. These include improved insulin/glucose control, increased thermic effect of food, enhanced maintenance of basal metabolic rate, ketosis-induced appetite suppression, and increased water loss [140]. | | Adherence to very low-fat diets (<20% of energy) is problematic [20]. The decrease in compliance commonly seen with reduced-fat diets was most recently observed in the Women's Health Initiative Dietary Modification Trial (WHI) [21]. In this study, which enrolled almost 49,000 women, the total fat intake goal of 20% of energy was not achieved. However, the low-fat intervention group was able to decrease their total fat intake by at least 9 percentage points (37.8% down to 28.8% of energy), an average that was achieved after 6 years. Some women were able to reduce total fat further. | | Effect of high-fat and low-fat diets on voluntary energy intake and substrate oxidation: studies in identical twins consuming diets matched for energy density, fiber and palatability. Am. J. Clin. Nutr. 66, 1332-1339.
44. Stubbs, R. J., Harbron, C. G., and Prentice, A. M. (1996). Covert manipulation of the dietary fat to carbohydrate ratio of isoenergetically dense diets: effect on food intake in feeding men ad libitum. Int. J. Obes. 20, 651-660.
45. Rolls, B. J., Bell, E. A., Castellanos, V. H., Chow, M., Pelkman, C. L., and Thorwart, M. L. (1999). | Andreas Moritz See book keywords and concepts | In addition, the study showed that low-fat diets had zero health benefits in regard to avoiding the risk of getting cancer and heart disease. The study cost the American taxpayers $415 million, but this money seems to have been wasted. The mass media, medical industry and food manufacturers have not taken much notice of this important finding. In the meanwhile, the low-fat hysteria continues to escalate.
"Light Fats" and their "Amazing" Effects
Take for instance "light-butter" or half-fat butter, which has been heralded as one of the greatest "achievements" of food technology so far. | Ann M. Coulston and Carol J. Boushey See book keywords and concepts | Effect of high-fat and low-fat diets on voluntary energy intake and substrate oxidation: Studies in identical twins consuming diets matched for energy density, fiber, and palatability. Am. J. Clin. Nutr. 66, 1332-1339.
46. Bell, E. A., Castellanos, V. H., Pelkman, C. L., Thorwart, M. L., and Rolls, B. J. (1998). Energy density of foods affects energy intake in normal-weight women. Am. J. Clin. Nutr. 37, 412-420.
47. Rolls, B. J., and Bell, E. A. (1999). Intake of fat and carbohydrate: role of energy density. Eur. J. Clin. Nutr. 53, S166-S173.
48. Rolls, B. J., Bell, E. A., and Thorwart, M. | Hyla Cass See book keywords and concepts | Research conducted at Harvard showed that high-carbohydrate, low-fat diets may actually increase the risk of heart disease by reducing the levels of the protective or "good" HDL (high-density lipoprotein) cholesterol in the bloodstream.
There is strong supporting evidence that the low-fat boom led to the current obesity trend. Just look at the numbers. According to the Center for Health Statistics, the American obesity epidemic started in the early 1980s—at the same time that the market was being flooded with low-fat products. Suddenly, the rate of overweight in adults went through the roof. | Jack Challem See book keywords and concepts | Men eating low-fat diets had no improvement in moods. The high-fat diet contained saturated fat but also ample amounts of more healthful monounsaturated and polyunsaturated fats.
Helpful Supplements
Most anxiety disorders have common biochemical features, but they differ in intensity. Because of this, many of the same supplements are useful for these disorders but in different dosages.
B-complex vitamins. A high-potency B-complex (or a high-potency multivitamin) is the most important supplement for reducing anxiety. | Michael Pollan See book keywords and concepts | There have been, and can be, healthy high-fat and healthy low-fat diets, so long as they're built around whole foods rather than highly processed food products. Yet there are some whole foods that are better than others, and some ways of producing them and then combining them in meals that are worth attending to. So this section proposes a handful of personal policies regarding what to eat, above and beyond "food."
*» EAT MOSTLY PLANTS, ESPECIALLY LEAVES. Scientists may disagree about what's so good about eating plants—Is it the antioxidants in them?The fiber?The omega-3 fatty acids? | | American nutritionists, who can't fathom how a people who enjoy their food as much as the French do, and blithely eat so many nutrients deemed toxic by nutritionists, could have substantially lower rates of heart disease than we do on our elaborately engineered low-fat diets. Maybe it's time we confronted the American paradox: a notably unhealthy population preoccupied with nutrition and diet and the idea of eating healthily.
I don't mean to suggest that all would be well if we could just stop worrying about food or the state of our dietary health: Let them eat Twinkies! | Gabriel Cousens See book keywords and concepts | In a study published in the Journal of the American Dietetic Association, all fifty-five study participants with Type-2 diabetes were put on low-fat diets, but the only group to achieve a cardioprotective fat profile were those who ate walnuts (30 grams—about one ounce—per day).70 Other studies have found similar results.71'72'73'74 Dr. Emilio Ros of Barcelona reported in the October 17, 2006 Journal of the American College of Cardiology that eating walnuts could reverse the impairment of endothelial function associated with eating a fatty meal, but olive oil did not show any measurable effect. | Bottom Line Health See book keywords and concepts | | Nieca Goldberg, MD
Previous research has suggested that low-fat diets might protect against cancer and heart disease, but no other studies have been as large or as well-designed as this one.
THE STUDY
The WHI is a large, 15-year study that is designed to identify the most common causes of death, disability and poor quality of life in postmenopausal women.
The study looked at 50,000 postmenopausal women, who were randomly assigned to one of two groups. | James Dowd and Diane Stafford See book keywords and concepts | Thomas Halton and Frank Hu of the Harvard University School of Public Health compared the satiety factor of high-protein diets to high-carbohydrate and low-fat diets, and they concluded that you feel more satisfied if you eat a high-protein diet, which, in turn, will result in your consuming fewer calories. This makes you lose more weight—and sustain the loss—than you would if you ate a high-carb or a low-fat diet.
The basics to take away from these studies of weight-loss programs are two simple facts:
1. To lose weight, you have to be able to stay on the program.
2. | Caldwell B. Esselstyn, Jr., M.D. See book keywords and concepts | The Women's Health Initiative researchers were quoted as saying that their results "do not justify recommending low-fat diets to the public to reduce their heart disease and cancer risk." True, they certainly do not justify recommending diets containing 29 percent fat, the level currently endorsed in the U.S. Dietary Guidelines. But those of us who have been studying the matter already knew that. The Women's Health Initiative study simply confirms that the guidelines are wrong: we should be recommending diets far lower in fat than those featured in this research. | Ann M. Coulston and Carol J. Boushey See book keywords and concepts | Genetic polymorphisms and weight loss in obesity: A randomised trial of hypo-energetic high- versus low-fat diets. PLoS Clin. Trials 1, el2.
257. Stefanick, M. L., Mackey, S., Sheehan, M., Ellsworth, N., Haskell, W. L., and Wood, P. D. (1998). Effects of diet and exercise in men and postmenopausal women with low levels of HDL cholesterol and high levels of LDL cholesterol. N. Engl. J. Med. 339, 12-20.
258. Thomson, C. A., Rock, C. L., Giuliano, A. R., et al. (2005). | Tori Hudson, N.D. See book keywords and concepts | Not all low-fat diets have provided cardiovascular prevention. In the Women's Health Initiative dietary modification trial, 48,835 postmenopausal women aged 50 to 79 years were randomly assigned to an intervention of intensive behavior modification to reduce total fat intake to 20 percent of calories and increase intakes of vegetables and fruits to five servings per day and grains to at least six servings per day.155 After an average of 8.1 years, this diet did not significantly reduce the risk of CAD, stroke, or CVD in postmenopausal women and achieved very modest effects on CVD risk factors. | KC Craichy See book keywords and concepts | She supports her theory with case studies of people who were sick and unhealthy on high carbohydrate, low-fat diets, but who sprang back to life when they "balanced" their diets with more fat and protein.
Schwarzbein recommends avoiding "man-made carbohydrates"—processed carbohydrates—in favor of those you can "pick, gather, or milk." She advises patients to eat "as much good fat as their body needs." This means eggs, avocados, flaxseed oil, butter, mayonnaise, and olive oil. Fried foods and hydrogenated fats are, of course, "bad fats," or "damaged fats," as Schwarzbein calls them. | | Diana Schwarzbein has concluded that:
¦ low-fat diets cause heart attacks.
¦ Eating fat makes you lose body fat.
¦ It's important to eat high cholesterol foods every day.20
According to Schwarzbein, the high carbohydrate, low-fat, moderate protein diet that most dieticians and disease-prevention organizations recommend is the culprit that turns people into diabetics, makes them age faster to the point of acquiring degenerative diseases, and it also keeps them fat and unhealthy as well. | Jonny Bowden, M.A., C.N.S. See book keywords and concepts | She makes the familiar arguments against low-calorie, low-fat diets (good). She is good on the subject of trans-fats.
But just when you're thinking it might be safe to go back in the water, here comes a statement like this: "A single potato is so high in starch it provides us with more energy than most people need in a day." All at once, can everybody say "gibberish"? I'm no defender of potatoes, but this statement is beyond the pale. | | The low-calorie version allows you about 1,200 calories a day, but is higher in protein than most conventional low-fat diets. And the book is correct in touting the metabolism-raising properties of protein and disdaining high-glycemic carbs like bagels for just about everyone.
In the low-carb version of the program, there are three phases. Phase one is the strictest part of the program. If you have fewer than 20 pounds to lose, you follow it for a week. If you need to lose more than 20 pounds, you stick with it for two weeks. | | The public, with their rapidly expanding waistlines, was growing weary of the low-fat dogma and beginning to realize that their low-fat diets were accomplishing very little in the way of weight loss; people were finally ready to look elsewhere for a solution. |
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