Drinking astragalus water for 20 days to lose 40 pounds and there is no scientific basis. Astragalus is a traditional Chinese medicine, the drug has the effect of replenishing qi and rising yang (replenishing qi to make yang qi rise), fixing the surface and stopping sweating (stopping sweating by consolidating the surface of the muscle), and inducing water retention and eliminating swelling (facilitating urination and eliminating edema). It can be used in the treatment of qi deficiency and weakness, loose food (thin and unformed feces), sinking of the middle qi (deficiency of the spleen and stomach qi, with manifestations such as falling of the internal organs), prolonged diarrhea and prolapse of the anus, blood in the stool and leakage of blood (excessive or dripping menstrual flow), sweating due to deficiency of the surface (frequent and natural sweating due to the weakness of the muscular surface), and edema due to deficiency of the qi. The adverse reactions and contraindications of the drug are not clear, but it is not recommended for patients with unresolved sores and solid heat syndrome. Astragalus in water has limited efficacy and should not be used to treat diseases. If necessary, it is recommended to go to a regular hospital and use it under the guidance of a professional physician.