Vitamin D Metabolism & Deficiency

Vitamin D Metabolism

Vitamin D3 or cholecalciferol is produced in the skin initiated from sunlight UVB radiation or absorbed from specific foods. The vitamin D3 is absorbed into the bloodstream and then into the liver where it changes to calcidiol. From the liver to the kidneys the calcidiol changes to calcitriol. Calcitriol then goes on to affect metabolic functions such as absorption in the intestines of calcium and phosphorus, bone regulation and cell regulation. As we age, vitamin D3 production can decline up to 75% leading to at the very least, muscle weakness and a reduction in bone strength and density.

Vitamin D Deficiency

Causes:

Winter side-effects (less sun exposure)
Sunscreen
Air pollution
High altitude
Poor diet

Imbalances:

Hypertension
Heart disease
Urinary infections
Tuberculosis
Depression
Schizophrenia
Liver disease
Rental failure
Crohn’s disease
Cystic fibrosis
Celiac disease
Muscular aches & weakness
Osteoporosis
Osteoarthritis
Rickets
Diabetes
Obesity

Solutions:

Sunlight on skin
Diet
Vitamin supplements

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