Research
Hormonal
Leptin resistance, caused by impaired blood-brain barrier transport or receptor signaling defects, prevents the hormone from suppressing appetite and regulating body weight in obese individuals.
Understanding leptin resistance highlights why simple calorie counting might fail. It suggests that metabolic health, including blood-brain barrier integrity and receptor sensitivity, is crucial. Work with a healthcare provider to address underlying metabolic health.
ModerateSupportsMEDIUM confidence
Leptin resistance refers to a reduced tissue response to leptin’s effects. Studies suggest that abnormalities may exist in the leptin transport systems of obese patients... Impaired blood–brain barrier (BBB) function affects leptin transport...
Why this rating
Based on a review of multiple studies including genetic and physiological evidence.
Source
Significance of neuroendocrine systems and the gut-brain axis (GBA) in the regulation of obesity
Hanwei Zhao et al. · PeerJ · 2026
DOI 10.7717/peerj.20400
narrative_reviewCited 1×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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