Sour Cherry by the Spoon
Sour Cherries are great sources of beta carotene or Vitamin A, and have more than either blueberries or strawberries. They also have Vitamins C and E, potassium, magnesium, iron, folate and fiber.
If this doesn't sell you on them, how about they are a natural source of melatonin and an antioxidant.
And they taste-AMAZING!