Snack on popcorn, it’s a whole grain. Seriously! Three cups of popped popcorn (what you get by popping 1 heaping tablespoon of kernels) equals one of your three recommended daily servings of whole grains and contains 3 grams of fiber. Gram for gram, popcorn boasts three times more polyphenols—antioxidants linked to improving heart health and also to reducing cancer risk—than kidney beans (the highest vegetable polyphenol source) and four times more than cranberries (the best fruit source), according to recent research out of the University of Scranton.
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