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Staudacher HM, Mahoney S, Canale K, Opie RS, Loughman A, So D, Beswick L, Hair C, Jacka FN. Clinical trial: A Mediterranean diet is feasible and improves gastrointestinal and psychological symptoms in irritable bowel syndrome. Aliment Pharmacol Ther 2024; 59:492-503. [PMID: 37969059 DOI: 10.1111/apt.17791] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/17/2023] [Accepted: 10/20/2023] [Indexed: 11/17/2023]
Abstract
BACKGROUND Diet is fundamental to the care of irritable bowel syndrome (IBS). However, some approaches are not appropriate for individuals experiencing psychological symptoms. AIMS To assess feasibility of a Mediterranean diet in IBS and its impact on gastrointestinal and psychological symptoms. METHODS We recruited adults with Rome IV IBS and mild or moderate anxiety and/or depressive symptoms to an unblinded 6-week randomised controlled trial. Patients were randomised to Mediterranean diet counselling or habitual diet. We collected gastrointestinal and psychological symptom data, dietary data and stool samples for metagenomic sequencing. RESULTS We randomised 59 individuals (29 Mediterranean diet, 30 control); 48 completed the study. The Mediterranean Diet Adherence Screener score was higher in the Mediterranean diet group than controls at week 6 (7.5 [95% CI: 6.9-8.0] vs. 5.7 [5.2-6.3], p < 0.001), and there was a greater score increase than controls (2.1 [95% CI: 1.3-2.9] vs. 0.5 [95% CI: 0.1-1.0], p = 0.004), demonstrating Mediterranean diet feasibility. There was a greater proportion of gastrointestinal symptom responders in the Mediterranean diet group than controls (24/29, 83% vs. 11/30, 37%, p < 0.001) and depression responders (15/29, 52% vs. 6/30 20%, p = 0.015). There was no difference in FODMAP intake at week 6 (p = 0.51). Gastrointestinal adverse events were similar (p = 0.588). There were no differences in change in microbiome parameters between groups. CONCLUSIONS A Mediterranean diet is feasible in IBS and leads to improvement in gastrointestinal and psychological symptoms. Although this study was unblinded, these findings together with the broader benefits of the Mediterranean diet, provide strong impetus for future research in IBS. Australia New Zealand Clinical Trials Registry: ACTRN12620001362987.
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Affiliation(s)
- Heidi M Staudacher
- Food & Mood Centre, The Institute for Mental and Physical Health and Clinical Translation (IMPACT), School of Medicine and Barwon Health, Deakin University, Geelong, Victoria, Australia
| | - Sophie Mahoney
- Food & Mood Centre, The Institute for Mental and Physical Health and Clinical Translation (IMPACT), School of Medicine and Barwon Health, Deakin University, Geelong, Victoria, Australia
| | - Kim Canale
- Food & Mood Centre, The Institute for Mental and Physical Health and Clinical Translation (IMPACT), School of Medicine and Barwon Health, Deakin University, Geelong, Victoria, Australia
| | - Rachelle S Opie
- Food & Mood Centre, The Institute for Mental and Physical Health and Clinical Translation (IMPACT), School of Medicine and Barwon Health, Deakin University, Geelong, Victoria, Australia
| | - Amy Loughman
- Food & Mood Centre, The Institute for Mental and Physical Health and Clinical Translation (IMPACT), School of Medicine and Barwon Health, Deakin University, Geelong, Victoria, Australia
| | - Daniel So
- Food & Mood Centre, The Institute for Mental and Physical Health and Clinical Translation (IMPACT), School of Medicine and Barwon Health, Deakin University, Geelong, Victoria, Australia
- Department of Nutritional Sciences, King's College London, London, UK
| | - Lauren Beswick
- Department of Gastroenterology, Barwon Health, Geelong, Victoria, Australia
- School of Medicine, Deakin University, Geelong, Victoria, Australia
| | - Chris Hair
- Department of Gastroenterology, Barwon Health, Geelong, Victoria, Australia
- School of Medicine, Deakin University, Geelong, Victoria, Australia
| | - Felice N Jacka
- Food & Mood Centre, The Institute for Mental and Physical Health and Clinical Translation (IMPACT), School of Medicine and Barwon Health, Deakin University, Geelong, Victoria, Australia
- Centre for Adolescent Health, Murdoch Children's Research Institute, Parkville, Victoria, Australia
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Ayala GX, Canale K, Ibarra L, Parada H, Crespo NC, Pérez R, Horton LA, Cherrington A. Facilitators of peer leader retention within a Type 2 diabetes intervention trial for US Latinos/Hispanics of Mexican origin. Health Educ Res 2023; 38:204-219. [PMID: 36848036 PMCID: PMC10203040 DOI: 10.1093/her/cyad006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 12/06/2022] [Accepted: 01/30/2023] [Indexed: 05/24/2023]
Abstract
Peer support is effective in improving self-management behaviors and health outcomes among individuals with Type 2 diabetes. Volunteer peer support programs offer a cost-effective resource for diabetes self-management support; however, factors affecting the retention of volunteer peer leaders remain understudied. Herein, we examined factors associated with volunteer retention and satisfaction among 34 predominantly Mexican-origin peer leaders who assisted patients from a Federally Qualified Health Center located on the US/Mexico border with their diabetes management. Peer leaders completed surveys with open- and close-ended questions at baseline, 6 months and 12 months. Quantitative and qualitative data analyses were guided by the Volunteer Process Model. Using nonparametric Mann-Whitney U tests, self-efficacy as a peer leader at 6 months was most associated with interest to continue volunteering (P = 0.01), and satisfaction with support from the program at 12 months was most associated with interest to continue volunteering (P = 0.01). The qualitative data indicated that the relationship between the peer leaders and their patients was the primary factor for a satisfying volunteer experience. Future research should focus on increasing peer leaders' self-efficacy and satisfaction with program support and examine how organizations can support the development of the patient-peer relationship. Practitioners should consider appealing to volunteer peers' motivations to promote their retention.
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Affiliation(s)
- G X Ayala
- School of Public Health, Institute for Behavioral and Community Health, San Diego State University, 9245 Sky Park Court, Suite 221, San Diego, CA 92123, USA
| | - K Canale
- School of Public Health, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA
| | - L Ibarra
- Institute for Behavioral and Community Health, San Diego State University Research Foundation, 9245 Sky Park Court, Suite 221, San Diego, CA 92123, USA
| | - H Parada
- School of Public Health, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA
| | - N C Crespo
- School of Public Health, Institute for Behavioral and Community Health, San Diego State University, 9245 Sky Park Court, Suite 221, San Diego, CA 92123, USA
| | - R Pérez
- Department of Anthropology, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA
| | - L A Horton
- Institute for Behavioral and Community Health, San Diego State University Research Foundation, 9245 Sky Park Court, Suite 221, San Diego, CA 92123, USA
| | - A Cherrington
- Division of Preventive Medicine, University of Alabama at Birmingham, 1717 11th Avenue South, Birmingham, AL 35205, USA
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Yao C, Tuck C, Barrett J, Canale K, Philpott H, Gibson P. Reproducibility of lactulose and fructose breath hydrogen testing and impact on clinical utility. Journal of Nutrition & Intermediary Metabolism 2016. [DOI: 10.1016/j.jnim.2015.12.258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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