You can’t drink yogurt on an empty stomach in the morning, otherwise it will cause stomach upset and will reduce the nutrition of yogurt. Yogurt is the main raw material is fresh milk, after sterilization to add some beneficial bacteria, after fermentation can be taken, due to the addition of beneficial bacteria, can play a role in increasing appetite, and can relieve the symptoms of constipation. But in taking yogurt try to avoid fasting, because fasting stomach acid concentration is relatively high, after taking the lactobacilli activity will be reduced to kill, so fasting with yogurt will not play a role in increasing appetite. Yogurt itself has a certain degree of acidity, coupled with the acidity of stomach acid, can easily lead to gastric mucosal damage, causing stomach pain, heartburn, acid reflux and other manifestations. Yogurt contains more protein, when taking yogurt on an empty stomach, it is easy to convert protein into calories to consume, so it will reduce the nourishing effect of yogurt.