(WELLNESS) JOHN MCDOUGALL, MD — Chronic Disease Causes Low Vitamin D Eating the Western diet causes serious common chronic diseases. In an effort to heal, the body responds with repair processes that include inflammation. One of the responses to this inflammation is the lowering of the serum 25-hydroxyvitamin D in the blood. Thus, low vitamin D in the blood is a result of being ill, not the cause of sickness. This is the main the reason studies using vitamin D supplements have consistently shown no benefits to patients with common chronic diseases. The metabolic imbalances created by administering this unnatural substance may actually be responsible for the increase in falls, fractures, and other damage. (Vitamin D is a hormone synthesized with the help of sunlight; it is not intended for oral intake or injection.)

Source: Vitamin D supplements – healthy or harmful?