You can drink yogurt on an empty stomach, but it is not recommended to drink yogurt on an empty stomach. Because when you are hungry, you will consume protein in yogurt, while when you drink yogurt on an empty stomach, stomach acid will destroy probiotics in yogurt. In addition, patients with stomach diseases are not recommended to drink yogurt on an empty stomach, especially those with hyperacidity. Because drinking yogurt on an empty stomach will increase gastric acid secretion and aggravate the symptoms of acid reflux and heartburn. Therefore, it is suggested to drink yogurt between meals, which is helpful for protein's absorption.