Long SJ, Benton D. Effects of vitamin and mineral supplementation on stress, mild psychiatric symptoms, and mood in nonclinical samples: a meta-analysis. Psychosom Med. 2013;75(2):144-53.
Rathod R, Kale A, Joshi S. Novel insights into the effect of vitamin B₁₂ and omega-3 fatty acids on brain function. J Biomed Sci. 2016;23:17.
Kennedy DO. B Vitamins and the Brain: Mechanisms, Dose and Efficacy–A Review. Nutrients. 2016;8(2):68.
Tiemeier H, et al (2002). Vitamin B12, folate, and homocysteine in depression: the Rotterdam Study. Am J Psychiatry, 159(12):2099-101