Vitamin D regulates the absorption and use of calcium and phosphorus. These minerals are vital for growth and the development and hardening of bones and teeth.
Parts of the bone marrow where immune cells are made respond to vitamin D, which is also thought to play a role in the prevention and treatment of infectious diseases.
By playing a role in the secretion of insulin by the pancreas, vitamin D helps in the regulation of blood sugar.
Vitamin D ensures the functioning of healthy nerves and muscles by regulating calcium levels in the blood, vital for nerve impulse transmission and muscle contraction.