355: Oxalates, Histamines & GLP1 GLP2 & GIP Resistance: How Plant Toxins Disrupt Signalling & Metabolism

Madonna’s recap highlights a powerful but often overlooked concept: plant‑derived irritants like oxalates and histamines can inflame the gut lining, activate mast cells, and injure L cells—the very cells responsible for producing GLP‑1, GLP‑2, and GIP. When these cells are stressed or damaged, incretin release becomes blunted, nutrient sensing becomes unreliable, and the gut becomes more permeable. This creates a state of functional incretin resistance, where the body technically produces incretins but cannot use them effectively. The downstream effects—poor satiety, unstable blood sugar, cravings, weight dysregulation, and hormonal flares—show up most strongly in people with oxalate dumping, MCAS, SIBO, endometriosis, and chronic gut inflammation.

She also explained how histamine excess and oxalate‑triggered inflammation disrupt vagal tone and gut‑brain communication, reduce SCFA production, increase histamine‑forming bacteria, and damage brush‑border receptors. All of this suppresses GLP‑1 and GLP‑2 secretion while increasing sympathetic stress signalling. This is why many clients feel “resistant” to their own incretins until the gut environment is repaired. Madonna emphasized that tri‑GLP supplements are helping people restore satiety, stabilize blood sugar, and reduce inflammation by supporting the very pathways that oxalates and histamines disrupt.

Hashtag Bundle

#IncretinResistance #GLP1 #GLP2 #GIP #Oxalates #Histamines #MCAS #GutHealth #LeakyGut #Endometriosis #MetabolicHealth #TriGLP #LCells #Microbiome #VagalTone #FunctionalMedicine #Inflammation #BloodSugarBalance #SatietyScience #GutBrainAxis