Blueberries are rich in anti-oxidants like anthocyanin, vitamin C, B complex, vitamin E, vitamin A, copper, selenium, zinc, iron, magnesium, phosphorus and manganese. These boost your immune system, help prevent infections, heal damaged brain cells and keep your memory sharp. Eating blueberries promotes urinary tract health by inhibiting the growth of the bacteria which would grow along the tract causing infection. The fibre content in blueberries will keep away constipation – a nice large handful need to be eaten daily, the vitamins, sodium, copper, fructose and acids will improve your digestion. Many, many studies published laboratory studies show that eating blueberries can help prevent cancer. It also been noted that after freezing blueberries at temperatures of 0°F (-17°C) or lower for periods of time between 3-6 months, there is no significant lowering of overall antioxidant value. And remember, buy organic! Recent studies have compared the antioxidant values of organically grown versus non-organically grown blueberries and found significantly higher concentrations of antioxidants.