Find out if you are deficient in this vital vitamin with a simple vitamin D blood test carried out using a finger prick kit in your own home.
Vitamin D is essential for maintaining strong bones, but there is growing evidence that it also plays key roles in boosting your immune system, muscle function, energy levels and reducing inflammation to name but a few.
Vitamin D deficiency in Ireland is very common. As the main source of vitamin D is sunlight, it is estimated that up to half of all adults in Ireland could be deficient in this essential vitamin. A blood test for vitamin D levels is therefore essential. 

Vitamin D (25 OH)