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17 Superfoods That Fight Disease
Why it's super: Just 1 cup of watercress supplies nearly 100% of a woman's recommended daily amount of vitamin K, which has been shown to prevent hardening of the arteries and is essential for strong bones. It is also a good source of vitamin A, a potent antioxidant.
How to enjoy it: Try these peppery leaves in place of lettuce in salads or sandwiches, or toss them in a quick stir-fry or soup.
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