Getting your five a day

Eating five servings of fruits and vegetables can go a long way to protecting against heart disease and cancer.

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We've been told the importance of eating fruits and vegetables ever since childhood, and yet we still tend to ignore this nutritional advice. In fact, a CDC survey found that only 18% of adults eat the recommended five daily servings of fruits and vegetables.

"The main reason older men have trouble reaching this amount is lack of awareness," says Vasanti Malik, a research scientist in the Department of Nutrition of Harvard's T.H. Chan School of Public Health. "They are not always engaged in their nutrition or aware of the impact fruits and vegetables can have on their health."