Description

Vitamin D has really come to the fore as a ‘must have’ daily supplement, particularly since it was established as one of the most important micronutrients there is, when it comes to the immune system. It is now one of the most extensively researched vitamins, and for good reason.

Also known as cholecalciferol (vitamin D3) and ergocalciferol (vitamin D2), Vitamin D in any form is now one of the most widely consumed supplements in the world. Vitamin D is readily consumed via the diet, but much of it is biologically inactive, so by far the most efficient way to meet vitamin D requirements is via ultraviolet rays (UV rays) from that big yellow ball of fire in the sky…our sun.

However, the sun rays aren’t and many of us spend too much time in doors, meaning we cannot always rely on the sunshine to fulfil our vitamin D needs. Some people also have darker skin, meaning they have higher melanin levels which reduces the bodies ability to utilise the sun for vitamin D. The elderly are generally less efficient at converting vitamin D and usually spend more time inside, hence the prevalence of vitamin D deficiency in some parts of Europe and, especially the UK.

Vitamin D requirements are also higher in children and women during pregnancy making oral vitamin D supplementation a key tool in avoiding deficiencies in the wider population.