Black pepper

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Ginger, Cayenne, Black Pepper
That heat on your tongue when you eat spices such as ginger, cayenne, and black pepper is evidence of gingerols, capsaicin, and piperine, compounds that boost metabolism. They also have an aphrodisiac effect—but avoid consuming them if you're bothered by hot flashes.

Try these recipes: Frozen Yogurt Sundae with Spiced Nuts, O's ginger menu