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Dieting is the practice of eating food in a regulated way to decrease, maintain, or increase body weight, or to prevent and treat diseases such as diabetes and obesity. As weight loss depends on calorie intake, different kinds of calorie-reduced diets, such as those emphasising particular macronutrients, have been shown to be no more effective than one another. As weight regain is common, diet success is best predicted by long-term adherence. Regardless, the outcome of a diet can vary widely depending on the individual.
The Atkins diet is a low-carbohydrate fad diet devised by Robert Atkins in the 1970s, marketed with claims that carbohydrate restriction is crucial to weight loss and that the diet offered "a high calorie way to stay thin forever".
A food pyramid is a representation of the optimal number of servings to be eaten each day from each of the basic food groups. The first pyramid was published in Sweden in 1974. The 1992 pyramid introduced by the United States Department of Agriculture (USDA) was called the "Food Guide Pyramid" or "Eating Right Pyramid". It was updated in 2005 to "MyPyramid", and then it was replaced by "MyPlate" in 2011.
The Scarsdale diet, a high-protein low-carbohydrate fad diet designed for weight loss, created in the 1970s by Herman Tarnower and named for the town in New York where he practiced cardiology, is described in the book The Complete Scarsdale Medical Diet plus Dr. Tarnower's Lifetime Keep-Slim Program. Tarnower wrote the book together with self-help author Samm Sinclair Baker.
A fad diet is a diet that is popular, generally only for a short time, similar to fads in fashion, without being a standard dietary recommendation, and often making pseudoscientific or unreasonable claims for fast weight loss or health improvements. Fad diets are usually not supported by clinical research and their health recommendations are not peer-reviewed, thus they often make unsubstantiated statements about health and disease.
The Zone diet is a fad diet emphasizing low-carbohydrate consumption. It was created by Barry Sears, an American biochemist.
Low-carbohydrate diets restrict carbohydrate consumption relative to the average diet. Foods high in carbohydrates are limited, and replaced with foods containing a higher percentage of fat and protein, as well as low carbohydrate foods.
A healthy diet is a diet that maintains or improves overall health. A healthy diet provides the body with essential nutrition: fluid, macronutrients such as protein, micronutrients such as vitamins, and adequate fibre and food energy.
In human nutrition, empty calories are those calories found in beverages and foods composed primarily or solely of sugars and/or certain fats and oils such as cholesterol, saturated or trans fats, that provide little to no useful nutrients such as protein, fibre, vitamins, minerals, essential fatty acids, or antioxidants. Foods composed mostly of empty calories have low nutrient density, meaning few nutrients relative to their energy content. The consumption of large amounts of empty calories can have negative health consequences.
Dean Michael Ornish is an American physician and researcher. He is the president and founder of the nonprofit Preventive Medicine Research Institute in Sausalito, California, and a Clinical Professor of Medicine at the University of California, San Francisco. The author of Dr. Dean Ornish's Program for Reversing Heart Disease,Eat More, Weigh Less and The Spectrum, he is an advocate for using diet and lifestyle changes to treat and prevent heart disease.
A diabetic diet is a diet that is used by people with diabetes mellitus or high blood sugar to minimize symptoms and dangerous complications of long-term elevations in blood sugar.
Nutritional rating systems are used to communicate the nutritional value of food in a more-simplified manner, with a ranking, than nutrition facts labels. A system may be targeted at a specific audience. Rating systems have been developed by governments, non-profit organizations, private institutions, and companies. Common methods include point systems to rank foods based on general nutritional value or ratings for specific food attributes, such as cholesterol content. Graphics and symbols may be used to communicate the nutritional values to the target audience.
Gary Taubes is an American journalist, writer, and low-carbohydrate / high-fat (LCHF) diet advocate. His central claim is that carbohydrates, especially sugar and high-fructose corn syrup, overstimulate the secretion of insulin, causing the body to store fat in fat cells and the liver, and that it is primarily a high level of dietary carbohydrate consumption that accounts for obesity and other metabolic syndrome conditions. He is the author of Nobel Dreams (1987); Bad Science: The Short Life and Weird Times of Cold Fusion (1993); Good Calories, Bad Calories (2007), titled The Diet Delusion (2008) in the UK and Australia; Why We Get Fat: And What to Do About It (2010); The Case Against Sugar (2016); and The Case for Keto: Rethinking Weight Control and the Science and Practice of Low-Carb/High-Fat Eating (2020). Taubes's work often goes against accepted scientific, governmental, and popular tenets such as that obesity is caused by eating too much and exercising too little and that excessive consumption of fat, especially saturated fat in animal products, leads to cardiovascular disease.
Nathan Pritikin was an American inventor, engineer, nutritionist and longevity researcher. He promoted the Pritikin diet, a high-carbohydrate low-fat diet combined with regular aerobic exercise.
John A. McDougall is an American physician and author. He has written a number of diet books advocating the consumption of a low-fat vegan diet based on starchy foods and vegetables.
Fit for Life is a diet and lifestyle book series stemming from the principles of orthopathy. It is promoted mainly by the American writers Harvey and Marilyn Diamond. The Fit for Life book series describes a fad diet which specifies eating only fruit in the morning, eating predominantly "live" and "high-water-content" food, and, if animal protein is eaten, avoiding combining it with complex carbohydrates.
The South Beach Diet is a popular fad diet developed by Arthur Agatston and promoted in a best-selling 2003 book. It emphasizes eating food with a low glycemic index, and categorizes carbohydrates and fats as "good" or "bad". Like other fad diets, it may have elements which are generally recognized as sensible, but it promises benefits not backed by supporting evidence or sound science.
Fred Pescatore is a Manhattan-based author and internist who specializes in nutrition. He is best known as the author of the bestselling children's health book Feed Your Kids Well (1998) and The Hamptons Diet (2004).
Audrey Eyton was an English animal welfare campaigner, journalist and writer. She is best known for creating the F-Plan diet, a high-fibre diet that has been criticized as a fad diet.
References
- ↑ McFadden, Robert D. (23 February 1985). "Nathan Pritikin, whose diet many used against heart ills". The New York Times.
- ↑ "The Pritikin program: Claims vs. facts". Consumer Reports. 47 (10): 513–518. 1982.
- 1 2 Camille Noe Pagan (22 January 2017). "Pritikin Diet". WebMD.
- ↑ Alters S, Schiff W (22 February 2012). Chapter 10: Body Weight and Its Management. p. 327. ISBN 978-1-4496-3062-1.
{{cite book}}:|work=ignored (help) - ↑ Alpers, David H; Stenson, William F. Bier, Dennis M. (1995). Manual of Nutritional Therapeutics. Third Edition. Little, Brown and Company. p. 495