Generally speaking, drinking yogurt properly at night will not gain weight. However, if you drink a lot of yogurt without moderation or without controlling other foods on the basis of drinking yogurt is going to be fat. 1. Every 100 grams of yogurt contains 72 kcal of energy, relative to other foods, yogurt calories are not too high, and yogurt contains more calcium and probiotics, calcium can promote bone health, but also will not be too much intake of fat; probiotics can stimulate gastrointestinal peristalsis, accelerate fecal discharge. 2. If you drink yogurt at night without controlling other dietary basis, or drink a lot of yogurt at night without moderation, drink yogurt and then immediately go to bed after drinking yogurt, without timely exercise, it will make the energy in the yogurt accumulate and store in the body, so the risk of gaining weight will increase. Those who are allergic to milk should not consume yogurt.