If your 7-month-old baby does not show symptoms of calcium deficiency, there is no need to take excessive calcium supplements. If symptoms of calcium deficiency appear, calcium can be supplemented through dietary supplements and taking calcium supplements. Calcium is indispensable to the growth and development of babies, and when babies are deficient in calcium, they may have symptoms such as restlessness, waking up easily, sweating, high forehead protrusion, weakness, etc., and in serious cases, they may have symptoms such as loss of appetite and convulsions. If the seven-month-old baby calcium deficiency symptoms, you can eat dairy products, soy products and other foods with high calcium content, add calcium-containing supplements, such as rice flour, egg yolks, etc.; but also pay attention to let the baby more sun exposure, which can promote the body for the absorption of calcium. Seven months baby if the symptoms of calcium deficiency, can also take calcium drugs such as calcium acetate granules, calcium carbonate tablets and so on at the same time add vitamin AD drops to promote calcium absorption. When the baby eat calcium can not be fed with milk, calcium should be fed between two milk, the absorption effect is better. If the baby needs to supplement calcium, it is recommended to go to the hospital in time, and follow the doctor’s advice to supplement calcium.