In many parts of Anatolia, many species are naturally distributed, while cultivars are cultivated in many regions. Fresh onion is a source of vitamin C. The green part of fresh onion contains "beta carotene". The substance called "adenosine" on the left is preventing the coagulation. Frequent consumption of fresh onions is also effective in preventing blood pressure. The sulfur compounds present in the breath leave breath and an unpleasant odor in the mouth. The smell of hands does not go out for a long time. but it also blocks carcinogenic substances.