Natures Aid Vegan Vitamin D3 1000iu 25ug contributes to the maintenance of normal bones, teeth, and muscle function. Vitamin D is essential for cell division and aids in the normal absorption and utilization of calcium and phosphorus, also helping to maintain normal blood calcium levels. Sourced from lichen, this supplement is suitable for vegans and vegetarians and may help reduce the risk of falls associated with postural instability and muscle weakness, a risk factor for bone fractures in older adults. Each tablet provides 1000iu of Vitamin D3. The product is manufactured in the UK to GMP and Pharmaceutical Standards and is Vegan Society Approved.