Studies show that the main reasons for weight loss are: 1) poor appetite, indigestion, picky eaters and anorexia, and long-term unwillingness to eat. 2) Being able to eat and sleep means getting fat, and the gastrointestinal absorption function is poor, so it is impossible to absorb and utilize nutrients, and eating various supplements or nutrients is of no help; 3) stunted growth and insufficient absorption and digestion of various nutrients. 4) Long-term sleep is not good, the body has not been fully rested, and physical exertion is too large. Thin people are mostly yin deficiency. To promote the normal development and metabolism of the body and make the body strong in an all-round way, we must fundamentally and thoroughly eliminate the causes of emaciation. If you are not sick, especially the endocrine system, then: 1. To regulate the function of the spleen and stomach, Chinese medicine believes that the spleen governs transportation and transformation, and food should be digested and absorbed well. Eat more spleen-strengthening foods, such as yam, crucian carp, red dates, etc., and it is best to ask Chinese medicine to prescribe a prescription; 2. People often say that "a horse has no night grass and is not fat". Eat supper every day, which is mainly high-calorie food and drink cola beer. The biological clock of the human body shows that after nine o'clock, the functions of various organs of the human body are basically in a weak state, which is also the time for fat accumulation. It takes five hours for a normal dinner to be fully digested. This extra heat, accumulated over time, will cause subcutaneous fat accumulation, and obesity will come quietly. 3. Eat snacks at ordinary times, the fragrance can relax the spleen. Popular: KFC, French fries, etc. 1 bar is fundamental and has good spleen and stomach function. If you follow article 2.3 again, you will get fat easily. Recipe for fattening: Beat two eggs in a bowl, add a spoonful of raw tomato juice and a proper amount of sugar, and beat them half-cooked with the same amount of boiling water. Eat empty clothes (or thin yellow poached eggs) every morning for a month, and then gradually get fat. Attachment: 15 kinds of high-calorie foods: whole wheat soda cake 506 calories canned juice: 255 calories (one can) potato chips: 548 calories, chocolate: 586 calories, ordinary cola: 168 calories, beer: 147 calories (one can) hot dog sausage: 307 calories. Croissant: 375 kcal, chestnut meat: 2 12 kcal, canned coffee: 127 kcal (one can), yuba: 457 kcal (all the above solid foods are 100g). I suggest you go to the endocrinology department of the hospital to see if it is hyperthyroidism.