Vitamin D3 is a fat soluble vitamin that plays an essential role in the immune system and is vital for the maintenance of normal muscle function. Vitamin D contributes to normal absorption and utilisation of calcium and phosphorous in the body and plays a crucial function in bone formation and mineralisation to help the development of strong healthy bones and teeth. HealthAid Vitamin D3 comes in an easy to swallow vegeterian capsule for maximum absorption and assimilation.WHO ARE VITAMIN D3 CAPSULES FOR?People who wish to maintain strong healthy bones and teethThose who do not have enough exposure to sunlightElderly people who are more prone to bone disordersElderly and growing children who may not be able to obtain adequate amounts of the vitamin DPeople with a darker skin tone