Eggs are rich in high-quality protein, which is helpful for muscle growth, because muscle growth needs protein. 30 minutes to 1 hour after exercise is the best time for nutrient absorption, and you can eat eggs at this time. If it is inconvenient to eat at ordinary times, you can have some protein powder or muscle powder (thin people are more suitable to eat muscle powder to gain weight first). You can eat one or two spoonfuls of muscle gain powder or protein powder 30 minutes after exercise.