Usa American calcium and magnesium tablets, as the name implies, provide calcium and magnesium for the body. Calcium can be said to be an important element in human bones, especially for the elderly and children. If you lack calcium, it will also lead to growth retardation, insomnia and fractures. Usa American calcium-magnesium tablets, rich in vitamin D, can improve the absorption and utilization of calcium in human body, so as to obtain better nutritional supplement effect. Take it half an hour after breakfast and dinner. According to the above explanation, I believe people have answered the questions about the usage of Usa calcium magnesium tablets and what nutrition can be supplemented. As one of the main elements of bones, calcium needs more attention from the elderly and children, and Usa calcium-magnesium tablets can be said to be a better choice.