Blackberries get their brilliant color from powerful anthocyanins, which are responsible for healthy memory function, anti-aging and reducing the risk of certain types of cancer. They also contain half your daily allotment of vitamin C, which combats heart disease, strengthens the immune system and keeps your skin bright and healthy. With thirty percent (six grams) of your daily fiber intake, they aid in optimal digestion. But the greatest benefit of adding blackberries to your diet? They are rich in phenolic acids – antioxidant compounds notorious for their powerful anti-carcinogenic effects.