Vitamin D3 can be beneficial in the treatment of rickets, hypoparathyroidism and certain bone disorders, as noted by WebMD. This vitamin is also important for the absorption of calcium and phosphorus, which are essential nutrients needed for bone health.
Vitamin D3 is also called cholecalciferol and is a form of vitamin D. This is a fat-soluble vitamin that is produced by the body through the skin's exposure to sunlight, as noted by Everyday Health. Deficiencies in this vitamin can cause health problems, such as rickets in children. A characteristic of this disease is bowed legs.
Bone disorders, including osteomalacia and osteoporosis, can also develop when there are low levels of vitamin D in the body. Osteomalacia occurs when bones become soft. For these deficiencies, supplementation is necessary. Taking vitamin D in combination with calcium can help with osteoporosis, which is when there is bone loss that leads to weakened bones, as noted by WebMD.