Blueberries are a great source of high potency antioxidants, bioflavanoids, and phytochemicals. They have a high ORAC rating, are low in calories and carbohydrates, and are simply one of the healthiest foods you can eat.
Blueberries neutralize free radical damage and are cardioprotective due to the presence of anthocyanins. Blueberries, along with its counterpart, bilberries - are visually protective as well...guarding against macular degeneration and glaucoma.
Recently it has been proven that blueberries are quite valuable in warding off age-related brain dysfunction, in particular Alzheimer's and dementia. Another award winning property in blueberries is ellagic acid. Ellagic acid is believed to help prevent ovarian and colon cancers, in addition to being cancer preventative in general.
1 Cup of fresh blueberries have 81 calories, 20 grams carbohydrate, 4 grams of fiber, and 0 fat grams. Blueberries are high in manganese, Vitamin C and E, as well as a host of other excellent nutrients.
The big story here is the high antioxidant activity. So get to the market and load up on those amazing little blue berries!