The calories of ancient tea, peach, gas, hemp, potato and oat milk are 397 calories. According to the relevant information in Food Query, the calorie of oat milk in Taoqi Mashu, Gu Ming is 397 calories, including carbohydrate 8. 1g, protein 1g, fat 0.8g and cellulose1.1g. Calorie is an energy unit, which is still widely used in nutrition measurement and fitness manual. The international standard unit of energy is joule.