All about blackberries. Pros.

100 grams of blackberries contain 35% of the daily value of vitamin C. Blackberries are high in anthocyanins and other antioxidants. Blackberries are an excellent source of vitamin K, which promotes blood clotting. Blackberry activates brain activity. Research has shown that rats that ate blackberries had improved cognitive skills compared to a group of rats that didn't eat blackberries. The authors of the study believe that this is due to the polyphenol substances that it contains.