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Atkins Diet
Cleaning up your carb act: Where to begin
Cleaning up your carb act: Where to begin

Most Americans eat between 250 and 300 grams of carbohydrates a day, the equivalent of 1,000 to 1,200 calories. The Institute of Medicine, which sets dietary nutrient requirements, recommends 130 grams a day. Some, such as Dr. Frank Hu, professor of nutrition and epidemiology at the Harvard School of Public Health, say achieving that would be a big step in the right direction, but other low-carb advocates believe the number is too inflexible. "What people can tolerate varies widely based on age, metabolism, activity level, body size and gender," says Dr. Stephen Phinney, nutritional biochemist and an emeritus professor of UC Davis. For healthy adults the number can be higher, he...

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