Yogurt is generally best taken between half an hour and two hours after a meal, or at night before bedtime. Yogurt contains lactobacillus, which can promote gastric juice secretion, improve appetite, increase digestion and absorption, regulate gastrointestinal flora, and promote gastrointestinal motility and relieve constipation. Between half an hour and two hours after a meal, the body’s stomach acid is diluted by food, and the PH value is higher than that of an empty stomach, which enables the lactobacilli in yogurt to fully grow and play their role, which is beneficial to the absorption of nutrients. Drinking yogurt before going to bed at night, the lactic acid contained in yogurt combined with calcium can play a more important role in promoting calcium absorption. Yogurt should not be heated, as lactobacillus will lose its activity when heated, reducing its nutritional value. Pay attention to rinsing your mouth after drinking to prevent the growth of certain bacteria in the mouth and damage to your teeth caused by acidic substances.