Vitamin D No Match for Common Cold

JAMA Network | JAMA: The Journal of the American Medical Association | Effect of Vitamin D3 Supplementation on Upper Respiratory Tract Infections in Healthy AdultsThe VIDARIS Randomized Controlled TrialVitamin D3 and Upper Respiratory Tract Infection

One study gave subjects massive doses of oral vitamin D3 once a month. The subject did not have significantly fewer upper respiratory infections over two winters (18 months.) Case close. Vitamin D doesn't prevent colds nor lessen their intensity. Throw away those vitamins. [They don't mean profit for Big Pharma.]

Various studies show that beta blockers may not reduce the likelihood of second heart attacks. They may even increase the likelihood of them. Well, hmmm, we need to do lots more studies. Don't stop taking your beta blocker. [That would reduce Big Pharma's profits.]

Are we surprised?