Nutrition
Incretin Effect of Meals
Gut hormones GLP-1 and GIP boost insulin after meals, especially with protein and whole foods. Meal order and quality shape glucose responses.
The incretin effect is the extra insulin release after oral food versus intravenous glucose—driven mainly by GLP-1 and GIP from the gut. Protein-rich, minimally processed meals produce stronger incretin signaling than rapid sugars alone, blunting post-meal glucose spikes in many people.
GLP-1 medications amplify the same pathway pharmacologically.
Common questions
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Does eating vegetables first help the incretin effect?
Meal order studies show lower glucose spikes when fiber and protein precede starches in some people. It is one tool alongside sleep, movement, and total intake.
Related terms
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