The antioxidants that give these little powerhouses their blue hue–anthocyanins–can help fight against the growth of cancer cells. Blueberries are also loaded with vitamins C and K and manganese and are thought to help protect against heart disease and age-related memory loss.
As if you needed another reason to eat more chocolate! Dark chocolate gets its famed health benefits from antioxidants called flavonols that can help lower blood pressure and reduce diabetes risk. Skip highly processed chocolatey picks with added sugar and milk–as usual–since they have lower antioxidant levels.