Why is vitamin D important for the human body?

Why is vitamin D important for the human body?

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.

Where does vitamin D 1, 25 D work in the body?

1,25 D acts on the intestine where it stimulates calcium reabsorption, and upon bone, where it promotes osteoblast differentiation and matrix calcification. The active hormone exerts its effects on these tissues by binding to the vitamin D receptor (VDR).

What are the effects of vitamin D on bone?

The classical actions of vitamin D are to promote calcium homeostasis and to promote bone health. Vitamin D enhances absorption of calcium in the small intestine and stimulates osteoclast differentiation and calcium reabsorption of bone. Vitamin D additionally promotes mineralization of the collagen matrix in bone.

How is vitamin D synthesized in the body?

Calcitriol is synthesized in skin upon exposure to sunlight. Vitamin-D acts along with other hormones like parathyroid hormone and calcitonin to regulate the plasma level of calcium. Vitamin-D acts on DNA and is associated with the activation of transcription.

What is vitamin D and what does it do?

Vitamin D is a vitamin the body cannot do without. It helps the body absorb calcium, it promotes cell growth and immune function, and reduces inflammation.

What does vitamin D do for the body?

Vitamin D is essential for optimum health and growth. Vitamin D is absolutely necessary for the growth and development of bones and teeth, since it is required for the proper absorption and utilization of calcium and phosphorus in the body–both also essential to the health of the skeleton.

What does vitamin D have to do with?

Vitamin D is also used to treat a more serious bone condition called osteomalacia (softening of bones). Vitamin D allows the body to absorb calcium. Without vitamin D, the body uses only a small percentage of the calcium in food. 2. Anti-Cancer Properties

What are the dietary sources of vitamin D?

Very few foods naturally supply vitamin D. Beef liver, cheese, egg yolks and fatty fish, which contain small amounts of D3, are the best dietary sources of D3. Cod liver oil provide a time-honored potent source of D3, although the taste might be a turnoff.