Solgar Vitamin D3 (Cholecalciferol) 1000IU (25µg) is a premium formula delivering vitamin D in the form that is easiest to use by the body – D3. Supporting optimal wellbeing, the benefits of the “sunshine vitamin” are numerous and well documented, but particularly for immune health. Vitamin D is a fat-soluble vitamin that is required to promote calcium absorption, which helps to maintain healthy bones and teeth. Solgar’s Vitamin D3 is a highly absorbable vitamin D. Obtained from the sunlight or vitamin D rich foods - over a billion people worldwide have very low levels of vitamin D. In addition to changing your diet and lifestyle, taking a vitamin D supplement is a good way to top up, especially in winter months. Vitamin D contributes to: - Normal function of the immune system - Maintenance of normal bones and teeth - Normal absorption of calcium and phosphorus - Normal blood calcium levels - Maintenance of normal muscle function