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Incretin Biology

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GLP-1 and GIP: The Two Incretins

GLP-1 and GIP are the two incretin hormones that amplify insulin after meals. Research shows how they work, differ, and drive modern obesity drugs.

19 min read|Mar 20, 2026

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Incretin Biology

Gut-Brain Blood Sugar Axis: How Incretins Signal Satiety

Incretin peptides GLP-1 and GIP connect your gut to your brain, controlling insulin, appetite, and satiety. Here's the science behind this signaling system.

13 min read|Mar 25, 2026
Incretin Biology

L-Cells and K-Cells: Where Incretin Hormones Are Made

L-cells make GLP-1, K-cells make GIP. These enteroendocrine cells line your gut and control up to 60% of your insulin response after eating.

14 min read|Mar 22, 2026