Vitamin D

Vitamin D

Vitamin D

The bioactive form of Vitamin D is a fat-soluble vitamin and a hormone that is known for its key role to maintain healthy bones and teeth and to support muscle function. Only a few foods contain Vitamin D, such as salmon, mackerel, or tuna.The major natural source of Vitamin D is its synthesis by the action of sunlight on skin. 

Functions

Vitamin D has four major metabolic functions.

1) Vitamin D is essential for a normal and healthy buildup of bones and teeths. Vitamin D helps the body to absorb calcium and thereby rises the level of calcium and other minerals in bones and teeths.

2) During infections Vitamin D supports the activation of white blood cells and thereby the reaction of the immune system.

3) Vitamin D stimulates muscle growth. Thus a sufficient supply is core for any form of athletic training.

4) Vitamin D has an important control function for cell development and the synthesis of other tissues. Vitamin D prevents uncontrolled cell growth or the development of abnormal tissue. 

Deficiency

As natural Vitamin D is primarily found in animal food, vegetarians have to pay special attention to their Vitamin D supply. (Peppermint is one of the few herbal sources of Vitamin D.) If the Vitamin D level is too low, especially children and adolescents who are still in the growth phase will have problems with the builtup of bones, muscles and teeths. But it applies also for adults and eldery people. A deficiency might as well affect immune system or hearing. Finally, it leads to an increased cancer risk.

Recommended Daily Intake

As Vitamin D is so important for the buildup of bones, the recommended daily intake rises for adults over 50 and over 70 years: It is 5.0 µg /day for both men and women in the years up to 50. For the 51-70 yr it is 10.0 µg /day, and for >70 yr 15.0 µg /day.

Best taken with

To supporting a healthy immune function, Vitamin D is best taken together with Vitamin C, Vitamin ESelenium, Zinc, and others (see more here).

To supporting male fertility, Vitamin D should be combined with powerful antioxidants and sperm building blocks such as L-Arginine, Vitamin C, Vitamin E, Selenium, and others (see more here).

To supporting healthy bones & joints, Vitamin D is idealy combined with Vitamin CVitamin K, Zinc, Glucosamine, Chondroitin, MSM and others (see more here).

 

 

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