BLACKBERRY: The blackberry belongs to the family of rosaceous plants, and it is one of the fruits that was collected at the dawn of mankind. Its beneficial effect was already known in antiquity (Hippocrates wrote about its general healing power). Folk medicine recommended its regular use to purify blood, in case of anaemia, low blood pressure, loss of appetite and jaundice. Blackberries contain important vitamins and minerals. Of these the most important are Vitamin A and C, calcium, potassium, manganese, phosphorus, magnesium and copper, but it also contains folic acid, Vitamin B1 and B6, pantothenic acid, riboflavin and niacin, and in small traces protein, fat and carbohydrate. It contains a significant amount of flavonoids, which are well-known immune system boosters and have anti-inflammatory properties. Flavonoids have several beneficial characteristics, most importantly they have antioxidant functions. This may protect the body mostly from the reaction of detrimental free radicals. Blackberries contain fibre, valuable fruit acids and mineral salts. These may play a role in fighting against viruses and bacteria. Its fruit is rich in tannins (tannic acid). Several blackberry species are used as medicinal plants, because tannin has astringent characteristics, which protects capillaries. Its pectin content is also worth mentioning. It is an officially acknowledge fact that consuming at least 6 g of pectin per day contributes to the maintaining normal blood cholesterol. It is also great against fatigue.