1. To increase dietary intake and gain weight, you must provide the body with various nutrients needed for the synthesis of tissues. In addition to eating meat, eggs, poultry, etc. that are rich in animal protein, you should eat more Eat foods rich in fat and carbohydrates (i.e. starch, sugar, etc.), and eat more soy products, vegetables, fruits, etc. As long as you eat a nutritious diet that is conducive to digestion and absorption, plus proper exercise, you can become strong. 2. A balanced diet. The meal content should be rich and varied, and the meals should be as delicious as possible. You can use high-fat, high-sugar foods such as butter or other edible oils, jams, and sugars to increase calories. It should be noted that although eating more high-fat and high-sugar foods can make weight gain faster, long-term or excessive consumption , will destroy appetite and may cause chronic diseases and endanger health. A balanced diet and a gradual increase in food intake should be adopted to avoid forced supply and destruction of appetite. 3. Develop good eating habits: eat regularly and ration, eat small amounts often, chew slowly and eat slowly. Eat small meals often, but do not increase the amount of each meal. Because most people who are thin have weak gastrointestinal function, eating too much in one meal often cannot be effectively absorbed. On the contrary, it will increase the burden on the gastrointestinal tract and cause indigestion. You can change the number of meals per day to 4 to 5 meals. 4. Change the meal routine: Eat foods with high concentration and nutrient density first, then eat other foods. Food should be easy to digest, high in protein, and high in calories. Use a step-by-step approach to gradually increase the intake of various nutrients, such as Chicken, fish fillets, green vegetables, sea cucumbers, butter, cream, etc. 5. Choose moderately cooked food. Choose moderately cooked food, such as steaming, stewing, stewing, stir-frying, boiling, etc. 6. Eat what you want to eat to stimulate appetite. In the early stages of the "weight gain" plan, you can choose some cuisines you want to eat to stimulate your appetite that has been in a sluggish state for a long time. 7. In addition to regular meals, you should eat snacks in moderation. You might as well put some snacks containing a certain amount of calories within easy reach, which can help the body absorb more calories