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Probiotic administration among free-living older adults: a double blinded, randomized, placebo-controlled clinical trial
Nutrition and Physical Activity Research Centre, Örebro University, Örebro, Sweden; Nutrition Gut Brain Interactions Research Centre, School of Health and Medical Sciences, Faculty of Health and Medicine, Örebro University, Örebro, Sweden.ORCID iD: 0000-0002-7678-5954
Örebro University, School of Health Sciences. Nutrition and Physical Activity Research Centre, Örebro University, Örebro, Sweden.ORCID iD: 0000-0002-2873-4247
Örebro University, School of Medical Sciences. (Nutrition Gut Brain Interactions Research Centre, Örebro University, Örebro, Sweden)
Nutrition and Physical Activity Research Centre, Örebro University, Örebro, Sweden; Nutrition Gut Brain Interactions Research Centre, School of Health and Medical Sciences, Faculty of Health and Medicine, Örebro University, Örebro, Sweden; Institute of Environmental Medicine, Karolinska institutet, Stockholm, Sweden.
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2016 (English)In: Nutrition Journal, ISSN 1475-2891, E-ISSN 1475-2891, Vol. 15, article id 80Article in journal (Refereed) Published
Abstract [en]

Background: Diseases of the digestive system have been found to contribute to a higher symptom burden in older adults. Thus, therapeutic strategies able to treat gastrointestinal discomfort might impact the overall health status and help older adults to increase their overall health status and optimal functionality.

Objective: The aim of this double-blinded, randomized, placebo-controlled clinical trial was to evaluate the effect of the probiotic strain Lactobacillus reuteri on digestive health and wellbeing in older adults.

Methods: The study enrolled general older adults (>65 years). After eligibility screening qualified subjects (n = 290) participated in a 2-arm study design, with each arm consisting of 12 weeks of intervention of either active or placebo product. Primary outcome measure was set to changes in gastrointestinal symptoms and secondary outcome measures were changes in level of wellbeing, anxiety and stress. Follow up was performed at 8 and 12 weeks.

Results: No persistent significant effects were observed on the primary or secondary outcome parameters of the study. A modest effect was observed in the probiotic arm, were levels of stress decreased at week 8 and 12. Similarly, we found that subjects suffering from indigestion and abdominal pain, respectively, showed a significant decrease of anxiety at week 8 after probiotic treatment, but not at week 12.

Conclusion: The RCT failed to show any improvement in digestive health after daily intake of a probiotic supplement containing L. reuteri. Neither was any significant improvement in wellbeing, stress or anxiety observed. Even though the RCT had a negative outcome, the study highlights issues important to take into consideration when designing trials among older adults.

Place, publisher, year, edition, pages
London, United Kingdom: BioMed Central, 2016. Vol. 15, article id 80
Keywords [en]
Older adults, Digestive health, Wellbeing, Lactobacillus reuteri, Probiotics
National Category
Public Health, Global Health, Social Medicine and Epidemiology Nutrition and Dietetics
Research subject
Nutrition
Identifiers
URN: urn:nbn:se:oru:diva-52175DOI: 10.1186/s12937-016-0198-1ISI: 000383425100001PubMedID: 27612653OAI: oai:DiVA.org:oru-52175DiVA, id: diva2:972588
Funder
Knowledge Foundation, 20110225
Note

Funding Agency:

Faculty of Medicine at Örebro University

Available from: 2016-09-21 Created: 2016-09-14 Last updated: 2018-07-16Bibliographically approved

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Östlund-Lagerström, LinaKihlgren, AnnicaRepsilber, DirkBrummer, Robert JanSchoultz, Ida

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