Solgar have developed a extra potent vitamin D3 supplement which is extremely convenient to use and highly effective. Vitamin D is a fat-soluble vitamin that is naturally present in very few foods. It is also produced endogenously when ultraviolet rays from sunlight strike the skin and trigger vitamin D synthesis. Vitamin D3 offers a broad range of health benefits beyond the role it plays in bone health and bone growth. Vitamin D3 may have a positive impact on heart and arterial health, immune system function, maintenance of healthy glucose levels and cognitive performance. This food supplement is suitable for vegetarians.