A proper diet consists of two main aspects, namely nutritional balance and dietary safety. In most areas of China, malnutrition due to family economic difficulties is very rare, but it is often caused by partial diet or basic diseases (chronic diseases or congenital diseases). Therefore, timely and reasonable addition of complementary foods during infancy, balanced diet and timely diagnosis and treatment of underlying diseases can avoid short stature due to nutritional imbalance. Dietary safety Due to the rapid development of China’s economy and the increasingly serious environmental protection situation, dietary safety has attracted ** and the public’s high attention. The intake of “environmental hormones” may cause the bone age to be advanced, resulting in impaired growth potential, thus affecting the adult height of children. So how to avoid the intake of “environmental hormones”? Parents can pay attention to the following aspects: 1. be careful with certain tonic foods; 2. be careful with certain animal foods with high estrogen content; 3. be careful with fast-growing animal and plant foods; 4. be careful with adult functional drinks; 5. pay attention to pesticide residues; 6. eat less fried foods; 7. eat less certain anti-seasonal fruits and vegetables; 8. eat less certain plastic packaged foods; 9. be careful with drugs containing estrogen; 10. 10. Take certain antifungal drugs with caution.