Tag: vitamin D
Should You Take Vitamin D Supplements?
Recent research found that supplemental vitamin D doesn't prevent fractures or have any effect on the diseases it has been claimed to help, and blood tests for vitamin D are useless.
Does Vitamin D Prevent Autoimmune Disease?
A new study published in The BMJ suggests vitamin D might prevent autoimmune disease, but there are reasons to be cautious.
Vitamin D for the prevention of COVID-19: A randomized controlled trial
A large clinical trial shows vitamin D supplementation had no effect on COVID-19.
Vitamin D shows no efficacy against moderate to severe COVID-19 infections
A new trial failed to find evidence that a massive dose of vitamin D improves outcomes in patients with moderate to severe COVID-19 infections.
When Doctors Refuse to Believe Evidence
Paul Offit's new book covers the evidence for many surgeries, medications, and screening tests that have been proven ineffective and harmful yet are still being used by doctors who refuse to follow the science.
Vitamin D supplements do not reduce the risk of depression
A newly-published randomized controlled trial finds vitamin D supplementation has no effect on depression. This adds to the long list of medical conditions for which vitamin D supplementation has turned out to be ineffective.
Vitamin D and Diabetes: Another Case Where Supplementation Sounded Like a Good Idea But Wasn’t
A new study shows vitamin D supplements don't prevent diabetes. But there are still unanswered questions.
Vitamin D supplements do not reduce the risk of cancer or cardiovascular disease
Vitamin D has been widely touted as beneficial for preventing cancer and cardiovascular disease. A large, well-conducted clinical trial now show that it has no effect.
Vitamin D and the relationship to colon cancer
Colorectal cancer is common. A new study examines the relationship with vitamin D levels.