Vitamin D plays a vital role in the proper development and functioning of the brain, bones, and the immune system. As our body naturally synthesizes the vitamin from sunlight, we often suffer from a lack of it. This shortfall can result in osteoporosis or frequent bone fractures. It is therefore advisable to check the vitamin D level in the blood at least once a year and, where appropriate, to supply the necessary doses.
We always advise to arrive for a blood collections on an empty stomach. We further recommend you drink a larger quantity of water or unsweetened tea (at least a quarter of a litre) before leaving home.