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Your stomach produces hydrochloric acid (pH 1.5-3.5) and pepsin, both of which cleave peptide bonds
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When this happens, it weakens the lower oesophageal sphincter, the valve that keeps stomach acid out of the oesophagus, which is why hiatal hernias are so often linked to heartburn, acid reflux, chest pain, bloating, and difficulty swallowing
GLP-1 (Glucagon-like peptide-1): GLP-1 is a peptide hormone secreted by intestinal L cells after food intake, exhibiting multiple physiological effects
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