Camp Grayling Join Maneuver Training Center. You are here: / Grayling DPTMS. Grayling DPTMS. Camp Graylingâs premier firing ranges offer unique exercise opportunities for individual to battalion sized elements on a variety of weapon systems and scenarios.
The body needs vitamin D to absorb calcium. Without enough vitamin D, one canât form enough of the hormone calcitriol (known as the âactive vitamin Dâ). This in turn leads to insufficient calcium absorption from the diet. In this situation, the body must take calcium from its stores in the skeleton, which weakens existing bone and prevents the formation of strong, new bone. You can get vitamin D in three ways: through the skin, from the diet, and from supplements.
To absorb calcium, your body also needs vitamin D. A few foods naturally contain small amounts of vitamin D, such as canned salmon with bones and egg yolks. You can also get vitamin D from fortified foods and sun exposure. The RDA for vitamin D is 600 international units (15 micrograms) a day for most adults. Next.