There has been no consensus on the optimal level of vitamin D intake to reduce PTH, and this is why many laboratories report the normal range of vitamin D to be so wide (20 to 40 ng/ml ...

Vitamin D affects how your immune system works, and plays a role in controlling certain types of inflammation, including the ...

Vitamin D, also known as the "sunshine vitamin," does much more than strengthen bones; it can support the immune system, lift ...