I'm not sure if I got downvoted for the joke, or because people think I'm wrong, but near the end of the study it says "At the current time, there is insufficie

I'm not sure if I got downvoted for the joke, or because people think I'm wrong, but near the end of the study it says "At the current time, there is insufficient evidence to draw any firm conclusions regarding an association between vitamin D deficiency and non-musculoskeletal health outcomes, including mental illness." So the jury is in fact out on whether or not you need vitamin D for your mental health.