https://www.nytimes.com/2022/07/27/health/vitamin-d-bone-fractures.html
But now, in the first large randomized controlled study in the United States, funded by the federal government, researchers report that vitamin D pills taken with or without calcium have no effect on bone fracture rates. The results, published Thursday in The New England Journal of Medicine, hold for people with osteoporosis and even those whose blood tests deemed them vitamin D deficient.
These results followed other conclusions from the same study that found no support for a long list of purported benefits of vitamin D supplements.
So, for the millions of Americans who take vitamin D supplements and the labs that do more than 10 million vitamin D tests each year, an editorial published along with the paper has some advice: Stop.