Bitter melon and onion boiled water has no specific efficacy in the clinic, but often eat bitter melon or onion will have some benefits to the human body. Bitter melon contains bitter melon, peptides, rich in vitamin C and other bioactive substances, and bitter melon does not have a significant ability to raise blood sugar, suitable for diabetic patients or patients with high blood sugar moderate consumption. It should be noted that bitter melon contains more oxalic acid, oxalic acid is not conducive to the absorption and utilization of calcium ions, cooking bitter melon is recommended to blanch with boiling water before, can remove most of the oxalic acid. The nutritional value of onion is also very rich, onion contains some sugar, fat, fiber, minerals and other ingredients, can help supplement the body’s nutrients, but it should be noted that the onion is spicy stimulating food, if consumed in excess is likely to stimulate the gastric mucosa, resulting in discomfort. There is no sufficient scientific evidence to confirm the efficacy of boiling bitter melon and scallion in water, so patients are advised not to blindly trust it, so as not to cause harm to the body. Currently there is no single food has been given the efficacy of the disease, if the body is not feeling well, it is recommended that patients go to the hospital to receive treatment.