Scientific methods to help grow taller include: scientific diet, proper exercise, vitamin D supplementation, etc. 1. Scientific diet: balanced nutrition is the foundation of growing taller, eat more fresh fruits and vegetables, eat more meat, eggs, milk, especially milk and milk products are good sources of calcium, according to the Chinese dietary guidelines, for children and adolescents in the peak growth and development period, they should consume about 300 ml of milk per day, in addition to dairy products, nuts are also a high-quality source of calcium. 2. Appropriate exercise: appropriate exercise is good for health, can also promote growth, so it is recommended that children 1-2 hours of moderate intensity exercise every day, in addition to the need to ensure adequate sleep, early to bed and early to rise, can promote the secretion of growth hormone, is conducive to growth. 3. Supplemental vitamin D: Vitamin D can help the human small intestine on the absorption of calcium, China’s dietary structure generally can not provide enough vitamin D, so the Chinese Nutrition Society recommends that children take 400 units of vitamin D orally every day, at least until the age of 2 years old, can be taken for life to supplement. In addition, ensuring adequate sleep also helps to grow taller. However, it is necessary to consult a doctor when there are obvious abnormalities in height and make adjustments as prescribed by the doctor.