Colief Vitamin D3 Drops Colief Vitamin D3 Drops are specially formulated to ensure that infants & young children receive the Vitamin D they need to support normal bone & teeth development. They can also be used by mums-to-be & breastfeeding mums to support normal bone & teeth maintenance at a time of increased nutritional requirements. Vitamin D also helps to maintain normal immune system function. The most common cause of vitamin D deficiency in the UK is insufficient production via the skin as a consequence of insufficient exposure to sunlight due to seasonal variations, the use of sun creams, too little time spent outdoors, or wearing clothes that cover too much of the body. Also, as we get older the capacity of our skin to produce vitamin D declines. Vitamin D deficiency can also be caused by insufficient absorption due to dietary inadequacy or a less efficient absorption from the daily food intake. As deficiency of this essential vitamin is common, the government advises that all infants & young children aged 6 months to 5 years & all pregnant & breastfeeding women should take a supplement containing vitamin D. Colief Vitamin D3 Drops have been developed to supplement deficiency as well as to fulfil the increased requirements. Colief Vitamin D3 Drops contains 600 drops, which is a 5 month supply for infants/children or a 4 month supply for pregnant & breastfeeding women.