4.You should eat every day: Blueberries
Host to more antioxidants than any other popular fruit, blueberries help prevent cancer, diabetes, and age-related memory changes (hence the nickname "brain berry"). Studies show that blueberries, which are rich in fiber and vitamins A and C, boost cardiovascular health. Aim for 1 cup fresh blueberries a day, or 1/2 cup frozen or dried.
Substitues: Acai berries, purple grapes, prunes, raisins, strawberries
Fit It In: Blueberries maintain most of their power in dried, frozen, or jam form.
Acai, an Amazonian berry, has even more antioxidants than the blueberry.
Mix 2 Tbsp. of acai powder into OJ or add 2 Tbsp. of acai pulp to ceral, yogurt, or a smoothie.