Vitamin A, D3, & K2

This combination of fat-soluble vitamins A, D3, and K2, offer a unique blend of essential nutrients.  Vitamin A, also known as retinol, plays a critical role in maintaining epithelial tissues that line several surfaces and structures, such as skin, gastrointestinal tract, respiratory tract, and nose. Vitamin A also plays a role in vision and immune function.​  Vitamin D3 plays an integral role in calcium metabolism and bone health, as well as immunity. Vitamin D3 can be derived from sunshine exposure and may be difficult to obtain from dietary sources alone. Recommended to be taken with a fat-containing meal, Vitamin D3 may help those in need of additional support.   Vitamin K2 (menaquinone MK-7) is a long chain vitamin supporting the deposition of calcium into bone and can also have a regulatory effect on Vitamin A and D by activating the proteins in both vitamins regarding osteoclast and osteoblast activity. *     References  National Institutes of Health, Office of Diet