The performance of four-month-old baby calcium deficiency: 1, when four-month-old baby calcium deficiency, mainly manifested as more sweating, not because of the hot weather. 2, also manifested as restlessness, poor sleep quality, easy to wake up and other phenomena, seriously affecting the baby’s growth and development. 3, four-month-old baby calcium deficiency for a long time, serious consequences will lead to the phenomenon of hair loss, usually the occipital area first began to lose hair. 4, a long time calcium deficiency will also 4, prolonged calcium deficiency can also be manifested as muscle weakness, late teething or speech and movement development than the same age. For four-month-old babies need timely treatment, you can add calcium supplements. When making meals for babies, you can make foods rich in protein and calcium, such as broth and special supplements for babies. When the baby can not eat supplemental food, you can use high-quality calcium formula for calcium supplementation, and more sunshine in daily life.