New review finds wild blueberries support heart and gut health

A sweeping scientific review highlights wild blueberries as a standout food for cardiometabolic health. The strongest evidence shows improvements in blood vessel function, with encouraging signs for blood pressure, cholesterol, blood sugar, gut health, and cognition. Researchers suggest these benefits may kick in within hours—or build over weeks—thanks to the berries’ unique mix of polyphenols and fiber.