Vitamin D is actually a hormone. It enables the absorption of Calcium and Phosphorus from the intestines and regulates gene expression in over 2000 genes of our 30,000 genes.
Vitamin D3 is naturally produced in humans in the skin when UVB light hits the skin and converts cholesterol to previtamin D, which is then converted to D3 (cholecalciferol) in the liver.
It is estimated that 20 minutes of sun exposure produce 20,000 IU of Vitamin D3 and we know there are Vitamin D3 receptors in most cells in the body.
Vitamin D is important for:
- Maintaining healthy bones and teeth.
- Absorbing calcium and phosphorus, all important in bone health.
- Supporting normal cell division.
- Helping to keep the immune system functioning normally, including the inflammatory response to wounds and infection
- Normal muscle activity.