Purplish black fruit can eliminate eye fatigue contain procyanidins, this component can enhance the elasticity of blood vessels to prevent cholesterol accumulation, cancer and atherosclerosis prevention best ingredients. On behalf of fruits are grapes, blackberries, blueberries and plums and so on. Compared with light-colored fruit, purplish black fruits contain more vitamin-rich C, can increase the body's resistance.
In addition, the purplish black fruit, potassium, magnesium and calcium content of minerals is also higher than normal fruit, these ions mostly exist in the form of organic salts in fruits among the maintenance of the body's ion balance has a crucial role.