Research
Hormonal
Gut-derived GLP-1 is not essential for the control of food intake or body weight in mice under normal conditions.
While gut health is important, the brain's response to GLP-1 is more critical for regulating food intake. GLP-1 medications work by acting on the brain, not just the gut.
GoodRefutesHIGH confidence
Hence, gut-derived GLP-1 is not essential for the control of food intake or body weight.
Why this rating
Based on genetic deletion studies in mice.
Source
GLP-1 physiology informs the pharmacotherapy of obesity
Daniel J. Drucker · Molecular Metabolism · 2021
DOI 10.1016/j.molmet.2021.101351
narrative_reviewCited 454×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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