: a food (such as salmon, broccoli, or blueberries) that is rich in compounds (such as antioxidants, fiber, or fatty acids) considered beneficial to a person's health
Superfoods increase energy and vitality, regulate cholesterol and blood pressure and may help to prevent or fight cancer and other diseases.—
Kathleen Back Brady, Tallahassee (Florida) Democrat, 26 Feb. 2014 Because açai is rich in polyphenols and other antioxidants, it's been hailed by some as a superfood or "miracle berry."—Andrew Weil, Self Healing, October 2006
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Merriam-Webster unabridged
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