Yogurt is a fermented milk product that is obtained by fermenting natural milk with a special starter, which must contain a “Bulgarian stick”. Production standards may vary between countries. Natural yogurt contains many active live bacteria that have a positive effect on the condition of the gastrointestinal tract. The dairy product is rich in phosphorus and calcium, which are responsible for strengthening teeth, hair, nails and bone tissue. Yogurt also contains B vitamins, which are necessary for the normal functioning of the nervous system and normalization of cholesterol levels in the blood.