If a person loses weight, he should go to the hospital for blood and urine tests, blood sugar tests, glucose tolerance tests, thyroid function tests, tumor tests and even tuberculosis tests, so as to clarify the factors that cause the body to lose weight. All of the above diseases may lead to wasting, if we exclude the factors of disease, wasting is also considered to be caused by malabsorption of nutrients, endocrine function abnormalities will cause people to appear a variety of diseases, these diseases will lead to increased endotoxin, body enzymes destruction, nutrients are difficult to be absorbed, which leads to the appearance of the human body wasting. Nutritional malabsorption is mainly due to poor gastrointestinal absorption, it is difficult to absorb the nutrients in food. Poor gastrointestinal absorption, you need to eat small meals, eat more food containing vitamins and fiber, do not eat spicy, acidic and spicy stimulating food and junk food, can improve gastrointestinal absorption, stimulate gastrointestinal absorption of nutrients in the food, so as to improve the human body wasting situation.