Level 1: Nutrients of Yoghurt Yoghurt is a drink rich in nutrients. It is mainly composed of milk, lactic acid bacteria and fructose. Among them, milk is rich in protein, calcium, vitamin B2 and other nutrients, and lactobacilli can help the human body digest and absorb nutrients in food. In addition, yogurt also contains an appropriate amount of fructose, which can provide the energy needed by the human body. Level 2: Reasons why pregnant women can drink yogurt. Pregnant women can drink yogurt, mainly because it is rich in yoghurt.