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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 visual function, and immune functions.

Vitamin D3 (cholecalciferol) plays an integral role in calcium metabolism and bone health as well as healthy immune defense. Adequate amounts of Vitamin D, an essential and fat-soluble vitamin, come from consistent exposure to sunshine and are difficult to obtain from dietary sources. Postmenopausal women, older individuals, and those with malabsorption, limited sun exposure, or certain illnesses may require higher intakes of vitamin D.

Vitamin K2 (menaquinone MK-7) is a long chain vitamin, which is an optimal form available in dietary supplements as it may stay in the body for a longer period of time. Vitamin K2 supports the deposition of calcium into bone, it also has a regulatory effect on Vitamin A and D by activating the proteins in both vitamins and with regard to osteoclast and osteoblast activity. When vitamin K2 is deficient or not well used in our bodies, bone structure and function can be compromised. *