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Vitamin D for depression

Vitamin D supplementation has been shown in a systematic review and meta-analysis to be associated with a statistically significant improvement in depression. At least 800 IU daily is recommended however in Tasmania we recommend 3000 IU vitamin D daily all year round. The antidepressant effect was comparable to that of antidepressant medication.

Spedding S, Vitamin D and Depression: A Systematic Review and Meta-Analysis Comparing Studies with and without Biological Flaws, Nutrients, 2014 April 11; 6(4): 1501-18