Supplementation of a single species probiotic does not affect diversity and composition of the healthy adult gastrointestinal microbiome

Over several years, consumer probiotic consumption has increased substantially. Consequently, the number of over-the-counter probiotic products available to consumers has also increased. Many consumers use probiotics for preventative purposes rather than to treat specific illnesses. The influence of...

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Main Authors: Rachel L. Washburn, Daniel Sandberg, Michaela A. Gazdik Stofer
Format: Article
Language:English
Published: Elsevier 2022-06-01
Series:Human Nutrition & Metabolism
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666149722000111
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author Rachel L. Washburn
Daniel Sandberg
Michaela A. Gazdik Stofer
author_facet Rachel L. Washburn
Daniel Sandberg
Michaela A. Gazdik Stofer
author_sort Rachel L. Washburn
collection DOAJ
description Over several years, consumer probiotic consumption has increased substantially. Consequently, the number of over-the-counter probiotic products available to consumers has also increased. Many consumers use probiotics for preventative purposes rather than to treat specific illnesses. The influence of probiotics on the healthy human gut microbiome has not been extensively studied and many questions remain regarding the influence of probiotic supplementation on existing gut flora. In this study, the effect of a commercial probiotic containing Bifidobacterium infantis on the composition and diversity of gut flora in healthy adults was examined. Thirty participants were enrolled in the study and randomly assigned to probiotic (n = 15) or placebo (n = 15) groups. Over the course of the study, three stool samples were collected to facilitate baseline, probiotic/placebo effect, and return to baseline measurements. The probiotic/placebo effect samples were collected after taking a probiotic/placebo tablet daily for 30 days, and the return to baseline sample was collected 30 days after completing the treatment course. V3/V4 16S rRNA sequencing was performed on all samples and data was analyzed using QIIME. No significant difference in gut community diversity or composition between probiotic and placebo groups was observed. This finding suggests that use of a single species probiotic in healthy individuals does not significantly influence microbial gastrointestinal diversity.
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spelling doaj.art-ba15d44b6b43479f8d0f35c76d8e4a0f2022-12-22T02:23:45ZengElsevierHuman Nutrition & Metabolism2666-14972022-06-0128200148Supplementation of a single species probiotic does not affect diversity and composition of the healthy adult gastrointestinal microbiomeRachel L. Washburn0Daniel Sandberg1Michaela A. Gazdik Stofer2Department of Biology, Utah Valley University, Orem, UT, USA; Department of Immunology and Molecular Microbiology, Texas Tech University Health Sciences Center, Lubbock, TX, USADepartment of Biology, Utah Valley University, Orem, UT, USA; College of Medicine - Tucson, University of Arizona, Tucson, AZ, USADepartment of Biology, Utah Valley University, Orem, UT, USA; Corresponding author. 800 West University Parkway Mail Stop 299, Orem, UT, 84058, USA.Over several years, consumer probiotic consumption has increased substantially. Consequently, the number of over-the-counter probiotic products available to consumers has also increased. Many consumers use probiotics for preventative purposes rather than to treat specific illnesses. The influence of probiotics on the healthy human gut microbiome has not been extensively studied and many questions remain regarding the influence of probiotic supplementation on existing gut flora. In this study, the effect of a commercial probiotic containing Bifidobacterium infantis on the composition and diversity of gut flora in healthy adults was examined. Thirty participants were enrolled in the study and randomly assigned to probiotic (n = 15) or placebo (n = 15) groups. Over the course of the study, three stool samples were collected to facilitate baseline, probiotic/placebo effect, and return to baseline measurements. The probiotic/placebo effect samples were collected after taking a probiotic/placebo tablet daily for 30 days, and the return to baseline sample was collected 30 days after completing the treatment course. V3/V4 16S rRNA sequencing was performed on all samples and data was analyzed using QIIME. No significant difference in gut community diversity or composition between probiotic and placebo groups was observed. This finding suggests that use of a single species probiotic in healthy individuals does not significantly influence microbial gastrointestinal diversity.http://www.sciencedirect.com/science/article/pii/S2666149722000111ProbioticsMicrobiome diversityGastrointestinal microbiomeHealthy adults
spellingShingle Rachel L. Washburn
Daniel Sandberg
Michaela A. Gazdik Stofer
Supplementation of a single species probiotic does not affect diversity and composition of the healthy adult gastrointestinal microbiome
Human Nutrition & Metabolism
Probiotics
Microbiome diversity
Gastrointestinal microbiome
Healthy adults
title Supplementation of a single species probiotic does not affect diversity and composition of the healthy adult gastrointestinal microbiome
title_full Supplementation of a single species probiotic does not affect diversity and composition of the healthy adult gastrointestinal microbiome
title_fullStr Supplementation of a single species probiotic does not affect diversity and composition of the healthy adult gastrointestinal microbiome
title_full_unstemmed Supplementation of a single species probiotic does not affect diversity and composition of the healthy adult gastrointestinal microbiome
title_short Supplementation of a single species probiotic does not affect diversity and composition of the healthy adult gastrointestinal microbiome
title_sort supplementation of a single species probiotic does not affect diversity and composition of the healthy adult gastrointestinal microbiome
topic Probiotics
Microbiome diversity
Gastrointestinal microbiome
Healthy adults
url http://www.sciencedirect.com/science/article/pii/S2666149722000111
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