You can read this research by searching Google for: Vitamin D: the alternative hypothesis The article states: • Prevailing theories of vitamin D are imprecise and suggest contradictory understandings of vitamin D metabolism. • 25-hydroxyvitamin D is immunosuppressive. • Supplementation of the secosteroid vitamin D temporarily alleviates signs and symptoms of chronic disease but leads to a long-term increase in morbidity. • Molecular biology suggests that low levels of 25-D are a result rather than a cause of the autoimmune disease process. • A microbiota of bacterial pathogens may survive in the human body by secreting proteins that antagonize the VDR and disable the innate immune response. • Elevated levels of 1,25-D exist at the site of disease and are an indication that the innate immune system is responding to an infection.