Cited by 110Nutrition and Health StudiesTrace Elements in HealthNutritional Studies and Diet

Effects of Vitamin and Mineral Supplementation on Stress, Mild Psychiatric Symptoms, and Mood in Nonclinical Samples: A Meta-Analysis

Long, Sara-Jayne, Benton, David·2013·Psychosomatic Medicine

Abstract

OBJECTIVE: Biochemical processes in the brain affect mood. Minor dietary inadequacies, which are responsible for a small decline in an enzyme's efficiency, could cumulatively influence mood states. When diet does not provide an optimal intake of micronutrients, supplementation is expected to benefit mood. This meta-analysis evaluated the influence of diet supplementation on mood in nonclinical samples. METHODS: Databases were evaluated and studies were included if they considered aspects of stress, mild psychiatric symptoms, or mood in the general population; were randomized and placebo-controlled; evaluated the influence of multivitamin/mineral supplements for at least 28 days. Eight studies that met the inclusion criteria were integrated using meta-analysis. RESULTS: Supplementation reduced the levels of perceived stress (standard mean difference [SMD]=0.35; 95% confidence interval [CI]=0.47-0.22; p=.001), mild psychiatric symptoms (SMD=0.30; 95% CI=0.43-0.18; p=.001), and anxiety (SMD=0.32; 95% CI=0.48-0.16; p<.001), but not depression (SMD=0.20; 95% CI=0.42-0.030; p<.089). Fatigue (SMD=0.27; 95% CI=0.40-0.146; p<.001) and confusion (SMD=0.225; 95% CI=0.38-0.07; p<.003) were also reduced. CONCLUSIONS: Micronutrient supplementation has a beneficial effect on perceived stress, mild psychiatric symptoms, and aspects of everyday mood in apparently healthy individuals. Supplements containing high doses of B vitamins may be more effective in improving mood states. Questions about optimal levels of micronutrient intake, optimal doses, and active ingredients arise.

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Crossref · 10.1097/psy.0b013e31827d5fbd

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Authors
Long, S.-J., & Benton, D.
Affiliations
Swansea University (GB)
Corresponding author
Benton, David
Venue
Psychosomatic Medicine
Published
2013-02
Volume
75
Issue
2
Pages
144-153
ISSN
0033-3174 (ISSN-L)
OpenAlex
W2330166759
Cited by
110
References
37
Citations by year
2026: 5 · 2025: 7 · 2024: 6 · 2023: 4 · 2022: 10 · 2021: 12 · 2020: 10 · 2019: 9 · 2018: 7 · 2017: 5 · 2016: 8 · 2015: 8 · 2014: 11 · 2013: 8
FWCI
1.67
Type
journal article
Language
en
Open access
closed
Locations
  • Psychosomatic Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • ORCA Online Research @Cardiff (Cardiff University) (submittedVersion)
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutrition and Health Studies
  • Health Sciences › Nursing › Nutrition and Dietetics › Trace Elements in Health
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
Keywords
micronutrients, mood, perceived stress, anxiety, depression, fatigue, confusion, B vitamins, non-clinical population, dietary inadequacy
MeSH terms
Affect, Anxiety, Confusion, Depression, Double-Blind Method, Fatigue, Humans, Placebos, Stress, Psychological, Randomized Controlled Trials as Topic, Treatment Outcome, Nutrition Policy, Micronutrients, Dietary Supplements

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