How old is the baby to start zinc supplementation

If the baby is not deficient in zinc, and the usual diet is relatively balanced, especially in the case of animal food and nut intake, there is no need for additional zinc supplement, because the baby's demand for zinc is not large, the general normal diet can ensure sufficient zinc intake, but if the stomach is not good for a long time, as well as intestinal diseases, large-area burns and other performance is the need for additional zinc supplement. Because zinc deficiency is easy to affect the normal taste, resulting in decreased appetite, thus affecting the intake of nutrients, reducing the body's immunity and affecting normal growth and development.