For people with vitamin D deficiency I would not be surprised if there's a connection to depression and I guess standard advice applies: If you think you might

For people with vitamin D deficiency I would not be surprised if there's a connection to depression and I guess standard advice applies: If you think you might be at risk, get yourself tested. If nothing else, you can avoid experiencing the bone related issues that a vit D deficiency might cause. This was the study I was thinking of (they did not target people with depression) https://jamanetwork.com/journals/jama/article-abstract/2768978 https://jamanetwork.com/journals/jama/article-abstract/27689... Weirdly I couldn't find any studies on the effects of supplementing with vitamin D for depression, even though there's plenty of studies on the correlation, and even one study where they used it for treatment, without any control group...