Vitamin D3


Vitamin D is a fat soluble vitamin which is not found naturally in many foods, but is manufactured in our skin when it is exposed to ultraviolet light, hence it is often known as the Sunshine Vitamin. For many people living in Northern regions, this synthesis in the body is inadequate and unreliable, especially in autumn and winter or for people who do not have a lot of sun exposure throughout the year.  

Vitamin D is known for its ability to help with the absorption and metabolism of calcium. Without enough vitamin D, children can develop rickets (malformed bones) and adults get osteomalacia (weak and painful bones). It is now recognised that vitamin D is associated with many other functions in the body, including modulation of cell growth, neuromuscular and immune functions, as well as reduction of inflammation.

For most people, 10 micrograms per day (400 IU) would be appropriate, especially during autumn and winter or if you do not spend much time outdoors. Many people choose to take higher levels of supplementation than these guidelines, though. A slightly higher intake might help some people avoid a whole range of other health issues, but research is inconclusive so far. Vitbox does supply a higher dose supplement at 25 micrograms (1,000 IU) for people who feel that this increased amount could be beneficial. 


To read our full article on Vitamin D and to see our sources, click here.

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