The Medical Tribune
Q: Does a person's blood type indicate the type of diet he or she should follow?
A: No. You may have heard of a diet based on the idea that blood type indicates whether your genetic ancestors were hunters, farmers or nomads. This in turn tells you whether you should eat meat, chicken, dairy foods, etc. Supposedly, eating appropriately for your blood type helps control weight while preventing cancer and other health problems. Although reports of such a diet may include vague references to someone's "research," no research supporting such claims has appeared in a scientific journal where it could be reviewed by experts.
Any weight loss that results from such a diet is probably due to the menus prescribed by the diet. These menus often contain calorie levels that are quite low, and many foods are restricted. Most experts agree that long-term weight control is best achieved by unrestricted access to a variety of foods, with emphasis on portion control, nutritional balance and regular exercise.
As for cancer prevention, a landmark report from the American Institute for Cancer Research concluded that a diet that emphasizes fruits, vegetables, whole grains and beans is the best approach.
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