Barberries are the tart, and red berries. They contain a unique compound which acts as an antioxidant. It may help improve blood sugar control, treat diarrhea, and fight inflammation related to dental infections and acne.  While the plant is native to parts of Iran and Asia, it can now be found all over the world The barberry fruit taste somewhat sour due to malic acid and other fruit acids and contain many vitamins, especially vitamin C. An extract of barberries is a common flavoring for soft drinks, candies, and sweets. Species diversity is greatest in South America and Asia. On the other hand, The country in which they are used the most is Iran, where they are referred to as zereshk (زرشک) in Persian. As a matter of fact the berries are common in Persian cuisine in dishes such as pilaf (zereshk polo) and as a flavoring for poultry. Because of their sour flavor, they are sometimes cooked with sugar before being added to Persian rice. You can be eaten raw, in jam, or as a component of rice dishes and salads. They can also be juiced or used to make tea. Iranian markets sell dried zereshk. Due to Iranians are using them frequently thus they are presented with a reasonable price and Arkadina Pardis is a reliable company to help you buy them with high quality.