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Systematic review of evidence to support the theory of psychobiotics

Amy Griffiths, Julia J. Rucklidge

Nutrition Reviews, Volume: 73, Issue: 10, Pages: 675 - 693

Swansea University Author: Amy Griffiths

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DOI (Published version): 10.1093/nutrit/nuv025

Abstract

Context: The theory that supplemented probiotic bacteria could affect psychological outcomes has recently been outlined in narrative reviews; to date, however, this area of research has not been systematically reviewed. Objective: The objective of this review is to compare the effects of probiotics...

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Published in: Nutrition Reviews
ISSN: 0029-6643 1753-4887
Published: 2015
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URI: https://cronfa.swan.ac.uk/Record/cronfa40735
first_indexed 2018-06-18T13:33:30Z
last_indexed 2018-11-12T20:15:38Z
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recordtype SURis
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spelling 2018-11-12T16:10:48.6467748 v2 40735 2018-06-18 Systematic review of evidence to support the theory of psychobiotics e360b00b12b720c52e38c94a539e6555 Amy Griffiths Amy Griffiths true false 2018-06-18 Context: The theory that supplemented probiotic bacteria could affect psychological outcomes has recently been outlined in narrative reviews; to date, however, this area of research has not been systematically reviewed. Objective: The objective of this review is to compare the effects of probiotics with those of placebo on psychological outcomes and symptoms of psychiatric disorders. Data Sources: The Cochrane Central Register of Controlled Trials, MEDLINE, Embase, PubMed, PsycINFO, and PsycARTICLES databases were searched electronically for studies published up to July 17, 2014. Reference lists of relevant articles were searched manually. Study Selection: Only double-blind, randomized, placebo-controlled human trials that used a standardized, validated scale to assess the effects of probiotic interventions compared with placebo on psychological outcomes or symptoms of psychiatric disorders were included. Data Extraction: Two researchers independently assessed trials and evaluated them for methodological quality. Data were extracted from the included studies using a data extraction form. Data Analysis: Ten trials met the inclusion criteria. Overall, there is very limited evidence for the efficacy of probiotic interventions in psychological outcomes. The evidence base is incomplete and lacks applicability. Conclusions: More trials are necessary before any inferences can be made about the efficacy of probiotics in mental health applications. Journal Article Nutrition Reviews 73 10 675 693 0029-6643 1753-4887 gut microbiota, inflammation, probiotics, psychobiotics, psychological outcomes. 30 9 2015 2015-09-30 10.1093/nutrit/nuv025 COLLEGE NANME COLLEGE CODE Swansea University 2018-11-12T16:10:48.6467748 2018-06-18T12:11:24.5848264 Faculty of Medicine, Health and Life Sciences School of Psychology Amy Griffiths 1 Julia J. Rucklidge 2
title Systematic review of evidence to support the theory of psychobiotics
spellingShingle Systematic review of evidence to support the theory of psychobiotics
Amy Griffiths
title_short Systematic review of evidence to support the theory of psychobiotics
title_full Systematic review of evidence to support the theory of psychobiotics
title_fullStr Systematic review of evidence to support the theory of psychobiotics
title_full_unstemmed Systematic review of evidence to support the theory of psychobiotics
title_sort Systematic review of evidence to support the theory of psychobiotics
author_id_str_mv e360b00b12b720c52e38c94a539e6555
author_id_fullname_str_mv e360b00b12b720c52e38c94a539e6555_***_Amy Griffiths
author Amy Griffiths
author2 Amy Griffiths
Julia J. Rucklidge
format Journal article
container_title Nutrition Reviews
container_volume 73
container_issue 10
container_start_page 675
publishDate 2015
institution Swansea University
issn 0029-6643
1753-4887
doi_str_mv 10.1093/nutrit/nuv025
college_str Faculty of Medicine, Health and Life Sciences
hierarchytype
hierarchy_top_id facultyofmedicinehealthandlifesciences
hierarchy_top_title Faculty of Medicine, Health and Life Sciences
hierarchy_parent_id facultyofmedicinehealthandlifesciences
hierarchy_parent_title Faculty of Medicine, Health and Life Sciences
department_str School of Psychology{{{_:::_}}}Faculty of Medicine, Health and Life Sciences{{{_:::_}}}School of Psychology
document_store_str 0
active_str 0
description Context: The theory that supplemented probiotic bacteria could affect psychological outcomes has recently been outlined in narrative reviews; to date, however, this area of research has not been systematically reviewed. Objective: The objective of this review is to compare the effects of probiotics with those of placebo on psychological outcomes and symptoms of psychiatric disorders. Data Sources: The Cochrane Central Register of Controlled Trials, MEDLINE, Embase, PubMed, PsycINFO, and PsycARTICLES databases were searched electronically for studies published up to July 17, 2014. Reference lists of relevant articles were searched manually. Study Selection: Only double-blind, randomized, placebo-controlled human trials that used a standardized, validated scale to assess the effects of probiotic interventions compared with placebo on psychological outcomes or symptoms of psychiatric disorders were included. Data Extraction: Two researchers independently assessed trials and evaluated them for methodological quality. Data were extracted from the included studies using a data extraction form. Data Analysis: Ten trials met the inclusion criteria. Overall, there is very limited evidence for the efficacy of probiotic interventions in psychological outcomes. The evidence base is incomplete and lacks applicability. Conclusions: More trials are necessary before any inferences can be made about the efficacy of probiotics in mental health applications.
published_date 2015-09-30T07:31:26Z
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score 11.056294

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