Blueberries are a very good source of vitamin C, manganese, and both soluble and insoluble fiber like pectin. Blueberries are also a good source of vitamin E.
Phytonutrients contained in blueberries include significant amounts of anthocyanadins, (antioxidants) that cause the blue color in this fruit, as well as ellagic acid, another phytochemical that has been shown to prevent cell damage.
Blueberries, like cranberries, help prevent or eliminate urinary tract infections.
Can help relieve both diarhea and constipation.
In labratory tests blueberries have been shown to help protect the brain from oxidative stress. This may help aid in the prevention of age related conditions like alzheimers disease or dementia.
People with preexisting and untreated kidney or gallbladder problems may want to avoid eating blueberries because of the oxalates in this fruit. When oxalates become too concentrated in body fluids, they can crystallize and cause health problems in this case.