SHIRLEY GRIFFITH: Like other low-fat diets, the Ornish plan suggests that people eat diets high in whole grains, fruits, vegetables, beans and other legumes. The plan advises people to avoid all meat and meat products, and to stay away from oils, nuts and seeds. It does not limit the number of calories people eat. But, eating the foods suggested by the diet plan would reduce the number of calories.
The Ornish diet has proved to be effective for many people. However, critics say it lets dieters eat too many carbohydrates while setting restrictions on calories from fat. They also say the changes required in eating habits may be too extreme for many people to follow.
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BOB DOUGHTY: Unlike the Ornish diet, low carbohydrate diets limit foods that are high in carbohydrates. These diets advise people to avoid things like white flour, pasta, rice, potatoes and foods high in sugar. Instead they suggest that people eat foods that are high in proteins and fats. These include foods like meat, fish, chicken, eggs, cheese and nuts.
The Atkins diet is one of the most popular of these diets. It suggests that people eat fewer than twenty grams of carbohydrates a day. This amount is slowly increased to between forty and one hundred grams of carbohydrates a day to keep the weight off.
SHIRLEY GRIFFITH: Both weight loss plans have been carefully studied over the years. But no one plan has come out as a clear winner. Three years ago, a study in the New England Journal of Medicine found low-carb diets to be the best at providing the most weight loss. The study was led by researchers at the Brigham and Women’s Hospital in Boston and Ben Gurion University in Israel.
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2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25