Vitamin D3 -Drops 400 I.U, Nutra healthcare

keeping bones and teeth healthy, maintaining correct muscle function, correct absorption and use of calcium and phosphorus in the body, it plays a role in the process of cell differentiation.
Perhaps the most vital are regulating the absorption of calcium and phosphorus, and facilitating normal immune system function. Getting a sufficient amount of vitamin D is important for normal growth and development of bones and teeth, as well as improved resistance against certain diseases.