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A new study published in the American Journal of Clinical Nutrition says that diets rich in whole grains can lower the risk of diabetes and heart disease.

However, the study concedes that people who eat more whole grains, such as bran and whole wheat, also tend to get more exercise, eat more fruits and vegetables, not to smoke, consume less alcohol and have generally better diets. So, it may not just be the whole grains having the positive effects.
KC's View:
That’s what we call a caveat.

Makes sense, though. These studies have to clarify everything these days, or else they end up down the road finding out, say, that low fat diets don’t have any impact on the onset of heart disease and cancer.