BioActive D-Pearls are an excellent supplement to ensure you are getting adequate levels of vitamin D. It can be difficult to get the recommended daily amount of vitamin D sometimes in Ireland, especially during the winter months. It is also naturally present is very few foods. It is essential to maintain good vitamin D levels, as it is responsible for a number of important functions in the body including supporting healthy bones and teeth and supporting the immune system. Just 1 capsule daily provides you with 75ug (3000IU) of vitamin D3. The vitamin D is cold pressed in olive oil to ensure good bioavailability as vitamin D is fat soluble.