Fast metabolism and weak gastrointestinal function are the main reasons why thin people don't eat high-fat foods. If thin people want to gain weight by dieting, they need to ensure the calorie index of food every day. They can eat high-energy foods, such as cakes, sweets, chocolates, etc., pay attention to a balanced diet and adequate nutrition, and eat a small amount of food, meat, eggs and fish.

Eat less and eat more. If you only eat three meals, you have to eat a lot to gain weight, which is undoubtedly the problem of thin stomach. And most thin people have weak gastrointestinal function. Eating too much at a meal can't be absorbed effectively. On the contrary, it will increase the burden on the stomach and cause indigestion, and vice versa.

However, due to the long interval between meals, calories and nutrients cannot be supplied continuously and timely, making it difficult to gain weight. Therefore, the number of meals per day should be changed to 5-6 times, mainly in the morning, noon and evening, and the diet should be increased appropriately.

2. Strengthen physical exercise.

Physical exercise helps to gain weight, but slim people should pay attention to gradual exercise and avoid excessive strenuous exercise. After each training, you should supplement high-protein foods, such as chicken protein, beef, shrimp, etc., and ensure adequate rest after training.

3, pay attention to the maintenance of the stomach.

Thin people have more or less gastrointestinal problems, such as insufficient gastric motility and gastritis. They may have abdominal pain and diarrhea within three days. Patients with gastrointestinal diseases should pay attention to the maintenance of the stomach, pay attention to eating less and eating more, and avoid overeating.

Add meals scientifically. Sleeping at night is a period when synthetic hormones such as human growth hormone and insulin are secreted vigorously. These synthetic hormones help to promote the synthesis and metabolism of protein in human body, and promote the growth and development of the body.

High quality sleep contributes to the secretion of these synthetic hormones. The most effective way is to drink a cup of sugar milk or a bowl of warm millet porridge half an hour before going to bed, or eat some high-protein food or dessert.