Correct calcium supplementation will not cause premature epiphyseal closure. Moderate calcium supplementation can promote children’s bone formation and growth and development, but not the more calcium supplementation, the better, a large amount of calcium supplementation will appear hypercalcemia, constipation, stones, organ calcification and other adverse reactions. During the period of calcium supplementation, try to avoid the consumption of vegetables with high oxalic acid content, such as spinach, bamboo shoots, etc., because oxalic acid can form calcium oxalate precipitation with calcium, thus affecting the absorption and utilization of calcium, such as the need to consume, can be blanched in advance to reduce the content of oxalic acid. The causes of premature epiphyseal closure include malnutrition, trauma, infection and other factors, but correct calcium supplementation will not cause premature epiphyseal closure. Calcium supplements should be taken under the guidance of a physician and should not be taken blindly.