Progesterone, aging & vitamin D Vitamin D deficiency, especially in older subjects, leads to increased expression of inflammatory factors and reduces the benefits of PROG treatment for TBI.

Progesterone, aging & vitamin D Vitamin D deficiency, especially in older subjects, leads to increased expression of inflammatory factors and reduces the benefits of PROG treatment for TBI.

Besides that, vitamin D helps in the production of sex hormones like estrogen and progesterone. Unexplained muscle pain or weakness might be another stealthy symptom of vitamin D deficiency.