Because Vitamin D3 is synthesized by your body when your skin is exposed to UVB light this biologically active form of Vitamin D is commonly referred to as the “sunshine vitamin.” An essential vitamin found throughout the body Vitamin D is necessary for calcium and phosphorus absorption and may help support healthy immune system function muscle function and strong bones and teeth.* KAL D3 ActivGel provides 25 mcg or 1000 IU of Vitamin D-3 as Cholecalciferol per softgel and 60 mcg of Vitamin A designed to help the body better utilize the Vit. D. This D3 formula may be especially helpful for individuals with limited exposure to sunlight. (Pair Vitamin D3 with K2 for even more bone and immune health support.) Designed for high absorption our small liquid-fill ActivGels are easy to swallow and perfect for persons who have trouble with large pills. Like all KAL products D-3 25 mcg is lab verified for purity and potency. Confidence in the KAL name is just one of the reasons we’ve been around so long and maintain our place as a leader in the industry. Unlike many other companies we manufacture almost all our own products in our GMP-certified facility in Utah. This gives us the ability to thoroughly test and screen raw ingredients for contaminants and impurities and manage the production process to bring you the best possible quality. Rest assured only the purest formulas ever reach your cabinet. Count on KAL D3 25 mcg for your daily D Vitamin needs! Vitamina para mujeres huesos sistema inmunológico inmunidad