Blueberries are rich in fiber, antioxidants and phytonutrients. Phytonutrients are natural chemicals found in plants. Unlike minerals and vitamins that are also found in plant foods, phytonutrients are not essential for keeping us alive. However, they may help prevent disease and keep the body working properly.
According to a study carried out at Harvard Medical School, elderly people who eat plenty of blueberries (and strawberries) are less likely to suffer from cognitive decline, compared to other people of their age who do not.
Blueberries were found in another study carried out by scientists at Texas Woman's University, to help in curbing obesity. Plant polyphenols, which are abundant in blueberries, have been shown to reduce the development of fat cells (adipogenesis), while inducing the breakdown of lipids and fat (lipolysis).