Do Herbal Medicines Promote Weight loss? (https://doi.org/10.1111/dom.13973)

Vollständiger Abstract

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<h4>Background</h4>Glucagon-like peptide-1 receptor agonists (GLP-1RAs) and dual GLP-1/GIP receptor agonists have transformed the pharmacological management of type 2 diabetes (T2D) and obesity, yet substantial interindividual variability in treatment response remains a defining clinical challenge.<h4>Methods</h4>Narrative review. PubMed was searched to 25 May 2026 (English language, human studies, 2005-2026) for biological, genetic, metabolic, hormonal, behavioural and psychosocial predictors of differential response. Evidence is organised across three clinically distinct contexts: glycaemic control in T2D; weight loss in people with overweight or obesity without T2D; and dual metabolic benefit in those with both conditions.<h4>Results</h4>Response heterogeneity is most pronounced in obesity without diabetes, where non-response-commonly defined as less than 5% total body weight loss-affects approximately 10% of participants in controlled trials, with real-world cohorts suggesting a higher frequency in routine practice; glycaemic non-response in T2D is less common but clinically significant. Across all three contexts, early on-treatment response is the most readily actionable predictor currently available. A recent large genome-wide association study reported associations between variation in the GLP1R drug-target gene and both weight-loss efficacy and gastrointestinal tolerability, and between agent-specific GIPR variants and nausea and vomiting with tirzepatide; these self-reported, single-cohort and as-yet unreplicated findings remain hypothesis-generating rather than a basis for individual-level genotyping. Metabolic, microbiome and neuroendocrine predictors are at a comparably preliminary stage.<h4>Conclusion</h4>No single baseline characteristic reliably predicts response. Structured assessment of early on-treatment response is currently the most defensible basis for individualising therapy; genetic, metabolic and microbiome markers require prospective replication before clinical application.

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