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Does an apple a day really keep the doctor away? A nutritionist explains the science behind 'functional' foods

  • Written by Janet Colson, Professor of Nutrition and Food Science, Middle Tennessee State University
Does an apple a day really keep the doctor away? A nutritionist explains the science behind 'functional' foodsWhile apples aren't considered a superfood, they are considered a functional food.Caterina Oltean/500px Prime via Getty Images

We’ve all heard that an apple a day keeps the doctor away, but how true is that?

Apples are not high in vitamin A, nor are they beneficial for vision like carrots. They are not a great source of vitamin C and...

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