Format

Send to

Choose Destination
See comment in PubMed Commons below
Br J Psychiatry. 2011 May;198(5):357-64. doi: 10.1192/bjp.bp.110.087544.

Annual high-dose vitamin D3 and mental well-being: randomised controlled trial.

Author information

1
Department of Clinical and Biomedical Sciences, Barwon Health, PO Box 281, Geelong, Victoria, Australia 3220. kerrie@barwonhealth.org.au

Abstract

BACKGROUND:

Epidemiological evidence supports a relationship between vitamin D and mental well-being, although evidence from large-scale placebo-controlled intervention trials is lacking.

AIMS:

To examine if vitamin D supplementation has a beneficial effect on mood in community-dwelling older women; if a single annual large dose of vitamin D has a role in the prevention of depressive symptoms; and if there is an association between serum 25-hydroxyvitamin D levels and mental health.

METHOD:

A double-blind, randomised, placebo-controlled trial of women aged 70 or older (the Vital D Study: ISRCTN83409867 and ACTR12605000658617). Participants were randomly assigned to receive 500 000 IU vitamin D(3) (cholecalciferol) orally or placebo every autumn/winter for 3-5 consecutive years. The tools utilised at various time points were the General Health Questionnaire, the 12-item Short Form Health Survey, the Patient Global Impression-Improvement scale and the WHO Well-Being Index. Serum 25-hydroxyvitamin D levels were measured in a subset of 102 participants.

RESULTS:

In this non-clinical population, no significant differences between the vitamin D and placebo groups were detected in any of the measured outcomes of mental health. Serum 25-hydroxyvitamin D levels in the vitamin D group were 41% higher than the placebo group 12 months following their annual dose. Despite this difference, scores from the questionnaires did not differ. Furthermore, there was no interaction between those on antidepressant/anxiety medication at baseline and the treatment groups.

CONCLUSIONS:

The lack of improvement in indices of mental well-being in the vitamin D group does not support the hypothesis that an annual high dose of vitamin D(3) is a practical intervention to prevent depressive symptoms in older community-dwelling women.

PMID:
21525520
DOI:
10.1192/bjp.bp.110.087544
[Indexed for MEDLINE]
Free full text
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for HighWire
    Loading ...
    Support Center