Yogurt is named from French. This is a food created from the fermentation process of milk by bacteria with incubation time to ensure the balance of heat and yeast. Most types of milk can be used to make yogurt, but cow's milk is the most commonly used. The main process taking place in yogurt fermentation is the metabolism from lactose to galactose, then galactose metabolised to pyruvic acid, and metabolised to lactic acid.

Vitamins and minerals such as calcium, protein, potassium, and phosphorus in yogurt not only help to make the bones healthy, but also increase bone density, help to prevent osteoporosis effectively, improve bone weakness in elderly people. The outstanding feature of yogurt is that it contains many good bacteria that help soothe the digestive system and regulate bowel movements, so it is considered as one of the extremely beneficial foods for the digestive system. When adding such minerals as magnesium, zinc and selenium to the body, they will help the immune system be strengthened, keep the body from being attacked by many types of disease bacteria from the outside environment.

Although yogurt is not directly involved in weight gain or loss, yogurt owns a number of properties that may help with weight control which thanks to its high protein content, works with calcium to increase concentration of hormones that reduce appetite. Regular yogurt "feeding" also helps the body reduce stress, the content of cortisol that is the cause of fat accumulation, especially around the waist, contributing to helping you quickly restore your body.