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A new Japanese study has found that taking daily supplements of zinc can decrease anger and depression in young women. As little as 7mg of zinc from zinc gluconate could significantly decrease hostile and dejected feelings. However, multivitamin supplements did not change the moods of the women in the study.
30% of the world is deficient in zinc and one of the common signs of zinc deficiency is the mood swing. For 10 weeks, two groups of women participated in this study: those who took multivitamins, and those who took zinc on top of the multivitamins. The women were all given multivitamins that provided 50% of Japanese recommended dietary allowances in order to evade vitamin deficiencies. Results of the study showed that women who took additional zinc supplements had higher zinc levels in the blood and had significant reductions in anger and depression measurements.
Source: European Journal of Clinical Nutrition Volume 64, Pages 331-333, doi:10.1038/ejcn.2009.158 "Effect of zinc supplementation on mood states in young women: a pilot study" Authors: T. Sawada, K. Yokoi
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