Vitamin D deficiency classically causes rickets and osteomalacia (thin bones) and is more common in children who are vitamin D deficient. Vitamin D is essential in healthy bones and very important for those with fragile bones and an increased risk of bone fractures. Insufficient vitamin D may contribute to bone loss associated with aging by reducing calcium absorption. DEVA Vitamin D is 100% animal free, and guaranteed for purity, freshness and labeled potency. Remember all DEVA Products are 100% vegan, vegetarian and are certified by the Vegan Society, the non-profit organization that actually invented the word “vegan”.