Research
Macro partitioning
Orlistat, a pancreatic lipase inhibitor, promotes modest weight loss and improves gut microbiota diversity (increasing Akkermansia and Verrucomicrobia), but its efficacy is significantly lower than GLP-1 agonists.
Orlistat blocks fat absorption, leading to modest weight loss and improved gut bacteria diversity. However, it is significantly less effective than GLP-1 agonists. Side effects like bloating and diarrhea are common if dietary fat is not strictly limited.
ModerateQualifiesMEDIUM confidence
Orlistat appears to influence microbiotal diversity by increasing the abundance of Verrucomicrobia and Akkermansia... On the other hand, the effect of orlistat is lower than the recent incretin analogues
Why this rating
Based on clinical trials and meta-analyses, but effect size is smaller.
Source
PHARMACOLOGICAL AND SURGICAL TREATMENT OF OBESITY: INTEGRATING THE ROLES OF INFLAMMATION AND GUT DYSBIOSIS- REVIEW
Karolina Zarówna et al. · International Journal of Innovative Technologies in Social Science · 2026
DOI 10.31435/ijitss.1(49).2026.4791
narrative_review
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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