obesity, advancing age, sunscreens over SPF 8
The Sun causes the synthesis of Vitamin D in the skin.
Your skin is responsible for synthesis of Vitamin D.
vitamin D
synthesis of a Vit. D
The body needs to have sunlight on the skin, to make vitamin D.
Calcitriol is the vitamin D precursor produced in the dermal capillaries that aid calcium absorption. Approximately 10 -15 minutes twice a week is necessary for vitamin D synthesis.
Several factors: 1. Weight bearing exercise 2. adequate calcium intake 3. Sun exposure (for vitamin D synthesis. Calcium cannot be absorbed without vitamin D) 4. Balanced diet, including an adequate intake of all essential nutrients. 5. Don't do drugs, some on them can inhibit proper growth and development in general. The majority of bone health and mass is accrued during adolescent years, so the best time to strengthen bones is during adolescence.
Julie Elizabeth Seymour has written: 'A novel approach to the synthesis of vitamin D'
Vitamin D improves the absorption of zinc, magnesium, calcium and phosphate in the body. This vitamin prevents rickets and improves the health of bones.
Vitamin D is very important. The primary source of vitamin D is the sun. The foods that most if is eats is not enough for our body. Vitamin D aids in the absorption of calcium, which in turn helps maintain bone density. When your bone density becomes too low then you are much more susceptible to osteoporosis.
Vitamin K aides in forming certain proteins, some involved with blood clotting Vitamin D promotes use and absorption of calcium and phosphorus Vitamin C functions is collagen synthesis, is an antioxidant, detoxification, and improves iron absorption
Vitamin D is produced by ultraviolet radiation on your skin. The UV light converts a precursor molecule to vitamin D.