1. Increase protein intake: protein is the key nutrient for muscle growth, and thin people need to increase protein intake. You can choose high-protein foods such as chicken breast, fish, beef and beans.
2. Control carbohydrate intake: Carbohydrate is the main energy source of the body, but excessive intake will lead to fat accumulation. Thin people need to control carbohydrate intake and choose carbohydrates with low GI value, such as oats, sweet potatoes and whole wheat bread.
3. Increase calorie intake: Muscle gain needs to consume more calories, and thin people need to increase calorie intake. You can choose high-fat foods such as nuts, olive oil and avocado.
4. Appropriate exercise: Muscle exercise requires appropriate exercise, and you can choose weight training and high-intensity interval training. Weight training can increase muscle mass, and high-intensity interval training can increase metabolic rate.
In short, thin people need a reasonable diet and proper exercise to gain muscle, and they need patience and persistence.