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Dean Michael Ornish (born July 16, 1953) 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.
A high protein diet relative to a low-fat or high-carbohydrate diet may increase thermogenesis and decrease appetite leading to weight reduction, [53] particularly 3-6 months into a diet when rapid weight loss is observed. [54] However, these advantages may be reduced later at 12–24 months into a diet during the slow weight loss phase. [54]
A desire to lose weight is a common motivation to change dietary habits, as is a desire to maintain an existing weight. Many weight loss diets are considered by some to entail varying degrees of health risk, and some are not widely considered to be effective.
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 (low-fat, low-carbohydrate, etc.), have been shown to be no more effective than one another.
The Weight Watchers diet tries to restrict energy to achieve a weight loss of 0.5 to 1.0 kg per week, [1] [3] which is the medically accepted standard rate of a viable weight loss strategy. [4] The dietary composition is akin to low-fat diets [ 1 ] or moderate-fat and low-carbohydrate diet [ 5 ] depending on the variant used.
[5] [14] McDougall's diet plan has been called a low-fat fad diet that may lead to boredom with limited food choices, and feelings of deprivation because of exclusion of favorite foods. The high fiber content can cause flatulence and possibly interfere with mineral absorption. [2] The McDougall diet is very low-fat, high-carbohydrate and vegan ...
Robert Coleman Atkins (October 17, 1930 – April 17, 2003) was an American physician and cardiologist, best known for the Atkins Diet, which requires close control of carbohydrate consumption and emphasizes protein and fat as the primary sources of dietary calories in addition to a controlled number of carbohydrates from vegetables.
Through an examination of the careers of American physician Caldwell Esselstyn and professor of nutritional biochemistry T. Colin Campbell, Forks Over Knives claims that many diseases, including obesity, cardiovascular diseases, and cancer, can be prevented and treated by eating a whole-food, plant-based diet, avoiding processed food and food from animals.