Glucagon-Like Peptide-1
Glucagon-like peptide-1 (GLP-1) is a hormone released by your gut after eating that helps stimulate insulin, slow stomach emptying, and promote fullness. It is part of your body's natural response to food.
GLP-1 is central to how your body coordinates blood sugar and appetite after meals. Understanding it sheds light on the gut-hormone signals that influence metabolism and satiety. It has also become widely known because it is the basis for a class of medications, though the hormone itself is a normal part of digestion.
GLP-1 naturally rises after eating, so levels depend heavily on timing relative to food. Interpreting a single measurement is complex, and it is not a routine standalone test. Your clinician would consider it only within a specific clinical context.
Lower GLP-1 activity has been studied in relation to how the body handles glucose after meals. Because levels shift so much with food timing, a single low value is difficult to interpret on its own.
There is no established everyday target for GLP-1, as it fluctuates with meals and is not a standard routine test. Your clinician can explain any result in its proper context.
Sources
Educational context only, not medical advice or a diagnosis. Reference ranges vary by lab, age and sex; always discuss your results with a clinician.