Macánta Vitamin D3 includes the most natural and potent form of vitamin D, cholecalciferol. The body needs vitamin D, a fat-soluble vitamin, for several purposes, including enhancing the immune system and facilitating calcium absorption. Since the majority of us in Ireland receive very little regular exposure to sunlight, it is frequently hard to maintain the levels of this essential vitamin, which cannot be obtained through diet. As we age, our systems become less effective at absorbing Vitamin D, which means that almost all immune system cells depend on it for proper function. For these reasons, taking this supplement in addition to a balanced diet and lifestyle is beneficial. Not recommended for use during pregnancy or nursing. Irish Gluten Free Vegan Recyclable packaging