Spinach (5/10)

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Few people would be surprised to find out that spinach is good for them. This is common knowledge. From the time of the Popeye cartoons, people have known that spinach is high in iron. As it happens, it is also one of the best sources of calcium among vegetables. A one-cup serving supplies about 30 mg of calcium. Not bad for a vegetable that only has 7 calories per cup.

Written by Rex Trulove

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