BUILD & MAINTAIN HEALTHY BONES / CALCIUM ABSORPTION / TEETH / D3 / SUN Henry Blooms Vitamin D3 promotes Calcium absorption which is essential for building and maintaining healthy bones. Vitamin D deficiency is common in Australia particularly in the age group where osteoporosis is a risk. Vitamin D assists with the absorption of Calcium. Stronger muscles and bones can help reduce the risk of falls in the elderly and reduce fractures. Vitamin D3 is the most absorbable form of Vitamin D.