Key findings from detailed records
Population: 37 adults with overweight or obesity Findings: Mean weight loss of approximately 2.8 kg and improved insulin resistance were reported in humans.
KNOWLEDGE RECORD
- Category
- Gut health and dietary fiber
- Last Reviewed
Names and related search termsResistant starch / Resistant starch / RS / Resistant starch / Resistant starch
Study type: human intervention study.
OUTCOME-SPECIFIC EVIDENCE
Scientific Evidence Profile
Assessment pending
An outcome-specific assessment has not yet been completed. This is not a finding that the ingredient is ineffective. The study records below remain available.
This profile concerns the stated outcome and population, not the ingredient as a whole. It is not a probability of benefit, a safety rating, a product efficacy rating or an indication of product adoption.
How we assess evidenceIngredient Profile
- What material is being studied?
- Resistant starch escapes digestion in the small intestine. Preparations can contain both resistant and digestible fractions, which need to be distinguished in fermentation experiments. [1]
Sources for this profile
Compound properties and formulation properties are different. These sources do not establish the efficacy of a finished supplement.
- Presence of digestible starch impacts in vitro fermentation of resistant starch. Identity and preparation checked against the study abstract. Funding details are not verified for this profile source. Conflict-of-interest details are not verified here.
Profile sources checked:
Read the evidence in context
- Evidence: what was measured in the stated population or experimental model.
- Inference: an interpretation connecting findings; its applicability depends on the study conditions.
- Hypothesis: a proposed explanation or effect that remains to be tested.
Why It Matters #
Are weight changes and gut microbial mechanisms supported by the same level of evidence? Check the detailed records for study conditions and use the literature map to compare other populations and outcomes.
What Was Studied #
A randomized placebo-controlled crossover trial in 37 adults with overweight or obesity assessed body weight as its primary outcome. Separate mouse experiments investigated mechanisms.[1]
What Was Found #
Mean weight loss of approximately 2.8 kg and improved insulin resistance were reported in humans.[1]
What the Evidence Means #
Small sample and short duration. Some causal microbiome mechanisms rely on mouse experiments. Long-term weight maintenance is unknown.[1]
Comparing similar populations, formulations, durations and outcomes helps identify where findings agree and where they differ.
What We Can Learn #
Distinguish human clinical findings from mechanisms supported by animal experiments. Check starch type and dietary conditions together.
What Remains Unknown #
Further questions include reproducibility across populations and formulations, and the long-term balance of benefits and harms. Use the literature map as a starting point for these questions.
LITERATURE MAP / 10 PAPERS
Compare papers by conditions and findings.
A literature map covering different populations, outcomes and formulations. Read alongside detailed records to avoid treating one trial as the conclusion for an entire ingredient.
Selected: 2026-09-21. Bibliographic information checked against Europe PMC / PubMed. Editorial selection considered major papers and a range of populations and questions. This is not a systematic search covering all recent research.
10 RECORDS
A dash marks fields outside the bibliographic record. Use detailed records to compare findings and design records to connect mechanisms.
No papers match. Change the search conditions.
The literature map is an index of research questions and references. Individual assessment of results, doses, funding and COI is limited to the detailed study records. Related reports from the same trial may be included; paper counts are not counts of independent trials.
Explore the research Study Records
Listed doses describe study conditions, not recommended intake.
Resistant starch intake facilitates weight loss in humans by reshaping the gut microbiota.
PubMed 38409604DOI: 10.1038/s42255-024-00988-y
- Authors
- Li H, Zhang L, Li J, Wu Q, Qian L, He J, Ni Y, Kovatcheva-Datchary P, Yuan R, Liu S, Shen L, Zhang M, Sheng B, Li P, Kang K, Wu L, Fang Q, Long X, Wang X, Li Y, Ye Y, Ye J, Bao Y, Zhao Y, Xu G, Liu X, Panagiotou G, Xu A, Jia W.
- Journal
- Nature metabolism
- Publication year
- 2024
- Study design
- Randomized placebo-controlled crossover trial plus animal research
- Participants
- 37 adults with overweight or obesity
- Dose and intervention
- Powder supplying 40 g/day of high-amylose maize RS2. Background meals were provided.
- Duration
- 8 weeks per intervention
- Outcomes and their role in the study
- Primary outcome: body weight. Secondary outcomes included fat distribution, waist circumference, lipids, insulin sensitivity, metabolome and gut microbiome.
- Findings
- Mean weight loss of approximately 2.8 kg and improved insulin resistance were reported in humans.
- Limitations
- Small sample and 8-week interventions with provided meals. No gastrointestinal side effects were reported in this trial. Some causal microbiome mechanisms rely on mouse experiments; long-term weight maintenance was not tested.
- Funding
- Public research grants from China and Hong Kong, EU Marie Skłodowska-Curie funding and German DFG support, detailed in the original acknowledgments.
- Conflict of Interest
- The authors declared no competing interests.
- Scope of source review
- Primary full text checked for participants, intervention, results, limitations, funding and conflicts of interest on 2026-10-24.
Cite this page
LÍFSVARÐA. Resistant starch: Are weight changes and gut microbial mechanisms supported by the same level of evidence? Version 1.1 / Updated 2026-10-24
https://lifsvarda.com/knowledge/resistant-starch/Edited by LÍFSVARÐA (product brand).Editorial policy
Sources and updates
- Li H, Zhang L, Li J, Wu Q, Qian L, He J, Ni Y, Kovatcheva-Datchary P, Yuan R, Liu S, Shen L, Zhang M, Sheng B, Li P, Kang K, Wu L, Fang Q, Long X, Wang X, Li Y, Ye Y, Ye J, Bao Y, Zhao Y, Xu G, Liu X, Panagiotou G, Xu A, Jia W. (2024). Resistant starch intake facilitates weight loss in humans by reshaping the gut microbiota.Primary full text checked for participants, intervention, results, limitations, funding and conflicts of interest on 2026-10-24.
First published: 2026-09-21 / Version 1.1. Updated 2026-09-23: Added a research comparison table and links to design records. Source notes identify the scope of verification when the full paper has not been reviewed. Research summaries and LÍFSVARÐA’s interpretation are distinguished.