Blueberries

Blueberries are a good source of vitamin C. Recent research has shown that blueberries may help prevent urinary tract infection.

Encyclopedia of Foods. A Guide to Healthy Nutrition

Blueberries are one of the few natural foods that are truly blue in color.

Avoid berries that are shriveled or moldy.

Store fresh blueberries in the refrigerator, unwashed, in their original container or a plastic bag, and use within five to seven days. Wash just before eating. For longer storage, freeze them in an airtight container or freezer bag for up to a year.