From Dr. Joseph Mercola:
Different types of berries do contain varying levels of nutrients, and can therefore be more beneficial for certain types of illness.
[B]lueberries rank #1 in antioxidant activity compared to 40 other fresh fruits and vegetables. They contain powerful phytochemicals, such as anthocyanin, which is the pigment that gives blueberries their color.
Blueberries are associated with numerous health benefits including protection against urinary-tract infections, cancer, age-related health conditions and brain damage from strokes. They may also reduce the build-up of so-called "bad" cholesterol, which contributes to heart disease and stroke.
Additionally, blueberries contain vitamins A and C, zinc, potassium, iron, calcium and magnesium, and are high in fiber and low in calories.
