Effects of Vitamin D Deficiency | International News Live Blog

https://internationalnewsliveblog.wordpress.com/2017/01/27/effects-of-vitamin-d-deficiency/

Vitamin D is a chemical produced by the skin with the aid of sunlight. If you work in an environment where you are unable to spend enough time outdoors, you may need to take a supplement to ensure that you are receiving the proper amount of vitamin D. Vitamin D … http://internationalnewslive.com/effects-of-vitamin-d-deficiency/