Dairy yogurt is the outcome of fermented milk. It is full of nutrition, and is rich in protein, calcium, riboflavin, vitamin B6, and vitamin B12. Yogurt has been a part of people's diets for about 4,500 years, and is present in cuisines all around the world. It may be used as it is, flavored, or as an essential ingredient in certain dishes. It is widely used in Southeast and Middle east Asia. In India, it forms the basis of many preparations, and served as an accompaniment alongside many foods.