The red variety gets its rich colour from an antioxidant called anthocyanins, which are also found in deep purple or reddish fruits and vegetables. The compound is believed to have properties that can reduce inflammation, allergy, prevent risks of cancer and help in weight management. The manganese present in both varieties helps in strengthening metabolism, while magnesium helps in migraine, lowers blood pressure as well as risks of heart attacks. Along with calcium, magnesium helps in maintaining healthy bones and teeth, and prevents risks of arthritis and osteoporosis. Selenium on the other hand protects the body against infections.
Moreover, since they are high in fibre content, the digestion process is slow, which leads to a strengthened digestive system. Fibre also aids in slowing down the rate at which carbs are converted into blood sugar; therefore fibrous foods are low on the glycemic load.