Living with a vitamin D deficiency can be difficult throughout all stages of life. Without the proper amount of vitamin D, you are subject to weak bones, fractures, muscle weakness, aches and falls. Vitamin D is important to bone growth and strength and as anyone with a vitamin D deficiency will tell you, getting your vitamin D in for the day is crucial for a happy, healthy life. So what makes vitamin D so important? Vitamin D aids the absorption of calcium from the intestinal tract by stimulating the synthesis of calcium-binding protein in the intestinal mucous membrane. As we all know, calcium is the key to having strong bones, but without vitamin D to help synthesize the absorption of calcium, all of those benefits are lost. Here at Zikspain, we offer Vitamin D3 (cholecalciferol) because it is the most beneficial vitamin D on the market. The vitamin D 3 benefits include an approximate 87% increased potency over vitamin D2 in raising and maintaining vitamin D in the blood. Having an adequate amount of vitamin D in the blood stream is important to bone and muscle health. If you have a vitamin D deficiency or are at risk to bone and muscle problems, it is imperative to take vitamin D3. Order today and make bone and muscle pain history. Vitamin D3 10, 000IU is manufactured in an FDA registered facilities.