Barley tea is made from barley, barley as a food, and does not have the efficacy of the drug, and therefore can not lose weight. Barley is a grass, annual herbaceous plants, each 100 grams of barley contains 354 kcal of energy, 73.48 grams of carbohydrates, 1.108 grams of polyunsaturated fatty acids, 160 micrograms of lutein class, magnesium 133 mg, potassium 452 mg, phosphorus 264 mg, lysine 465 mg and other nutrients. Barley as a food, there is no drug effect, so drink barley tea can not lose weight. However, because barley is particularly rich in nutrients, drinking barley tea in moderation can replenish the body with needed nutrients and provide energy. It is recommended to drink barley tea in moderation, so as not to cause abdominal pain, diarrhea and other discomforts caused by overdrinking. If you need to lose weight, you can do it scientifically under the guidance of a professional doctor.