I always thought blueberries were tops when it comes to antioxidants. Nope. The acai berry (pronounced "ah-sigh-EE") takes tops honors and may beat out every other fruit or vegetable by a mile, says RealAge. Consider this: The freeze-dried berry has 30 times the disease-preventing anthocyanins of red grapes. Sounds pretty good to me.

Acai berries are so good they can help lower cholesterol, minimize inflammation, fend off arthritis, and fight cancer -- in one study, the berry extract killed between 45 and 86% of a sample of human leukemia cells.

Antioxidants aside, acai berries are also full of B vitamins, magnesium, copper, zinc, phosphorus, and sulfur. Want to give them a try? Stop by your local health food store for juices, smoothies, and other products containing the nutritious fruit.