ArticleFrontiers in nutrition2026
Daily fiber supplementation after bariatric surgery demonstrates tolerability and influence on the fecal gut microbiome.
Article in Frontiers in nutrition, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05653648 (Testing the Feasibility of Resistant Starch From Potatoes to Modify Short-chain Fatty Acid Levels After Bariatric Surgery), which is not on this map. Not yet cited in PubMed.
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Testing the Feasibility of Resistant Starch From Potatoes to Modify Short-chain Fatty Acid Levels After Bariatric Surgery
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Authors and funding
12 authors.
Funding
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Abstract
Introduction: This study assessed the feasibility and tolerance of a 30-day resistant potato starch (RPS) supplement in patients who recently underwent bariatric surgery and its effect on microbial production of fecal short-chain fatty acids (SCFA). Methods: This clinical trial (ClinicalTrials.gov, identifier: NCT05653648), conducted at Dartmouth Hitchcock Medical Center, provided 30-days of RPS supplement (titration: 24 g for 15 days; 48 g for 15 days) starting 90-days post-op and assessed gastrointestinal symptoms, dietary intake (24 h recall), fecal SCFAs, and fecal gut microbiome ( Results: The RPS supplement was well tolerated by participants (77% achieving consumption goal), with modest, but significant increases in self-reported gas ( Discussion: This study demonstrated that a RPS supplement is tolerable in post-op bariatric patients and that the gut microbiome is responsive to fiber interventions. RPS increased the abundance of SCFA-producing bacteria but did not alter fecal SCFAs, likely due to competition among cross-feeders.
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