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Research does seem to show a link between low levels of vitamin D in the blood and symptoms of depression. However, research hasnât yet shown clearly whether low vitamin D levels cause depression, or whether low vitamin D levels develop because someone is depressed.here are a number of good research studies from the last few years that look specifically at vitamin D and depression. In a review of research about vitamin D and depression in 2013, 9 researchers looked for and analysed all of the published research about depression and vitamin D up until February 2011.
Answers from Brent A. Bauer, M.D. Studies of hospitalized patients â who often have lower than normal vitamin C levels â have found that they experienced an improvement in mood after they received vitamin C. The link between vitamin C and mood may seem surprising, but it's not so far-fetched. People who have vitamin C deficiency often feel fatigued or depressed. Plus, some studies show that vitamin C can have mood-elevating effects. So it makes sense that vitamin C levels could affect mood â but more research is needed. In the meantime, eat plenty of fruits and vegetables rich in vitamin C. If you also take a supplement, try not to exceed the upper limit of 2,000 milligrams of vitamin C a day.