6 Side Effects , of Vitamin D Deficiency.<br />Vitamin D builds healthy bones <br />and supports a strong immune system. .<br />But what happens <br />if you don't get enough?.<br />1. Your bones will ache, A condition called osteomalacia, caused <br />by inflammation, will cause bone pain.<br />2. You could get sick , Without the boost from vitamin D, <br />your immune system could suffer.<br />3. You'll feel tired , Chronic fatigue and sleep disorders <br />are common when deficient in vitamin D.<br />4. You could get depressed , Emerging research suggests a link between <br />depression and low vitamin D levels.<br />5. Your fertility could suffer, Evidence suggests that vitamin D plays an important <br />role in male and female reproductive health.<br />6. Your risk of type 2 diabetes could increase, Vitamin D helps the body's <br />insulin sensitivity and regulation