Vitamin D is fat-soluble nutrition. It is the only nutrition that can be produced in the body on its own, making it more of a hormone than a vitamin. It does so when your skin has the required amount of direct sun exposure, and it can also be found in some food sources.
Once your body takes in vitamin D, chemical processes in your liver allow it to be absorbed into your blood. Your blood then directs it through your tissues and in your kidney where it turns into activated vitamin D, also known as calcitriol. In this activated form, it now supports the calcium supply and absorption by your blood, bones, and gut, and helps the cells in your body grow and function properly.
Why is Vitamin D screening needed?
Vitamin D screening involves analysing the levels of vitamin D in your blood. If you are ‘Deficient, or cannot synthesize vitamin D on your own, this puts you at a higher risk of having deficiency-related complications.
Having a simple Vitamin D screening will help your clinician discuss it with you and suggest some dietary changes along with D-supplements.
Adequate vitamin D levels are important for children under five, pregnant women, and breast-fed babies and infants.
Vitamin D deficiency is common and some individuals are particularly at risk:
- Those over 65
- Those suffering from kidney, liver, or gut issues
- Black or Asian individuals
- Those with bone-metabolism issues