Journal
FRONTIERS IN NUTRITION
Volume 10, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fnut.2023.1104238
Keywords
gut microbiota; Mediterranean diet; healthcare professionals; older adults; healthy aging; aging; microbiome; science communication
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Strategies to improve the gut microbiome through consuming an improved diet, including adopting the Mediterranean Diet (MD), may promote healthy aging. The study explored older adults' and healthcare professionals' perspectives of the MD, gut health, and microbiome for their role in healthy aging. Findings showed that while gut health was considered important, specific effects of the MD on gut microbiota, and the significance of this for healthy aging, was under-recognized.
ObjectivesStrategies to improve the gut microbiome through consuming an improved diet, including adopting the Mediterranean Diet (MD), may promote healthy aging. We explored older adults' and healthcare professionals' (HCPs) perspectives of the MD, gut health, and microbiome for their role in healthy aging. DesignPhenomenological qualitative. SettingCommunity-dwelling older adults and HCPs in primary and secondary care in Ireland. ParticipantsOlder adults (aged 55 + years), recruited through social, retirement and disease-support groups. HCPs recruited through researcher networks and professional associations. MeasurementsSemi-structured 1:1 interviews and focus groups (FGs) conducted remotely with older adults and HCPs separately. Interviews/FGs were recorded, transcribed, and coded using inductive thematic analysis. ResultsForty-seven older adults were recruited (50% male; 49% aged 60-69 years; 28% 70 +), and 26 HCPs including dietitians (n = 8); geriatricians (n = 6); clinical therapists (n = 4); nurses, pharmacists, catering managers, and meal-delivery service coordinators (n = 2 each). Older adults considered the MD a nice way to enjoy food, good for cardiovascular health and longevity, but with accessibility and acceptability challenges (increased salads/fish, different food environments, socio-cultural differences). HCPs felt the MD is included in healthy eating advice, but not overtly, mostly through the promotion of mixed-fiber intake. Older adults considered live yogurt and probiotics, and to a lesser extent fiber, to maintain a healthy gut, suggesting the gut has something to do with cognitive and digestive health. Overall, microbiota-health effects were considered not common knowledge among most older adults, but becoming more topical among both professionals and the public with advancing scientific communication. ConclusionWhile gut health was considered important, specific effects of the MD on gut microbiota, and the significance of this for healthy aging, was under-recognized. Future efforts should explain the importance to older adults of maintaining the gut microbiota through diet, while appreciating perspectives of probiotic products and supplements.
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