Yellow muscle thinness may be caused by protein malnutrition, iron deficiency anemia, hyperthyroidism, etc., can take dietary modification and medication and other methods to improve. 1. Protein malnutrition: you can moderately increase the intake of protein and high-calorie foods, such as milk, eggs, red meat, soy products, etc., so that the BMI index as far as possible within the standard range. If more serious malnutrition, you need to consult a doctor in time to receive standardized treatment. 2. Iron deficiency anemia: you can increase the intake of animal blood products, seafood, red meat and other iron-rich foods. For example, 100 grams of pig’s blood contains 8.7 mg of iron and 100 grams of oysters contain 7.1 mg of iron. When anemia is severe, medication should be used under the guidance of a doctor. 3. Hyperthyroidism: Patients with hyperthyroidism may have symptoms such as excessive sweating, excessive eating, agitation, increased heart rate, etc. They are also prone to yellowish skin and thinness. They should seek medical treatment in time and receive medication under the guidance of the doctor. Diet is based on high protein, high calorie food. There are other reasons for yellow muscle thinness, it is recommended to actively regulate the diet at the same time timely medical care, to identify the causes of the cause of the treatment, the above medication to follow the doctor’s instructions.