Vitamin D for a strong immune system
The most important role of vitamin D is putting calcium into our bones. But it also has other roles such as regulating our immune systems. Vitamin D is involved in the regulation of both the innate immune system (general defence) and the acquired immune system (specific targeted defence), as well as having a role in regulating inflammation. Studies have shown that higher levels of vitamin D are associated with reduced disease, including respiratory infections. A blood test for Vitamin D gives a reference range of 50-250 nmol/L, with the lower end of this range set in order to prevent osteoporosis (spontaneous spinal fractures). Whilst vitamin D levels above 50nmol/L does prevent osteoporosis, optimal health is found in levels between 100-150nmol/L. Our bodies make vitamin D with exposure...
