Cited by 120Vitamin C and Antioxidants ResearchAntioxidant Activity and Oxidative StressAlcoholism and Thiamine Deficiency

The neuropsychiatric effects of vitamin C deficiency: a systematic review

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Plevin, David, Galletly, Cherrie·2020·BMC Psychiatry

Abstract

Background: Vitamin C deficiency may be more common than is generally assumed, and the association between vitamin C deficiency and adverse psychiatric effects has been known for centuries. This paper aims to systematically review the evidence base for the neuropsychiatric effects of vitamin C deficiency. Methods: Relevant studies were identified via systematic literature review. Results: Nine studies of vitamin C deficiency, including subjects both with and without the associated physical manifestations of scurvy, were included in this review. Vitamin C deficiency, including scurvy, has been linked to depression and cognitive impairment. No effect on affective or non-affective psychosis was identified. Conclusions: Disparate measurement techniques for vitamin C, and differing definitions of vitamin C deficiency were apparent, complicating comparisons between studies. However, there is evidence suggesting that vitamin C deficiency is related to adverse mood and cognitive effects. The vitamin C blood levels associated with depression and cognitive impairment are higher than those implicated in clinical manifestations of scurvy. While laboratory testing for ascorbic acid can be practically difficult, these findings nonetheless suggest that mental health clinicians should be alerted to the possibility of vitamin C deficiency in patients with depression or cognitive impairment. Vitamin C replacement is inexpensive and easy to deliver, although as of yet there are no outcome studies investigating the neuropsychiatric impact of vitamin C replacement in those who are deficient.

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  1. [15]Gabb G Gabb B Scurvy not rare Aust Fam Physician 2015 44 7 438 440 26922826

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Authors
Plevin, D., & Galletly, C.
Affiliations
  • SA Health (AU)
  • The University of Adelaide (AU)
Corresponding author
Plevin, David
Venue
BMC Psychiatry
Published
2020-06-18
Volume
20
Issue
1
Pages
315-315
ISSN
1471-244X (ISSN-L)
OpenAlex
W3036062496
Cited by
120
References
45
Citations by year
2026: 13 · 2025: 21 · 2024: 18 · 2023: 35 · 2022: 19 · 2021: 13 · 2020: 1
FWCI
2.12
Type
journal article
Language
en
Open access
Locations
  • BMC Psychiatry (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Vitamin C and Antioxidants Research
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Health Sciences › Medicine › Neurology › Alcoholism and Thiamine Deficiency
Keywords
scurvy, depression, cognitive impairment, psychosis, neuropsychiatric effects, vitamin C, mood disorders
MeSH terms
Ascorbic Acid, Ascorbic Acid Deficiency, Depression, Humans, Scurvy, Vitamins, Cognitive Dysfunction

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