Why do I have heartburn or acid reflux on a GLP-1?
The short answer: Reflux and heartburn happen because food sits in your stomach longer — manageable with smaller meals and timing. This is a common GLP-1 side effect.
Why it happens
Delayed stomach emptying means food and acid stay in your stomach longer, which can push acid up into your esophagus, especially after large or fatty meals or when you lie down soon after eating.
How long it lasts
It often improves as doses stabilize, but meal size, meal timing, and food choices strongly influence it day to day.
What helps
- Smaller meals; avoid fatty, spicy, and acidic trigger foods
- Don't lie down for 2–3 hours after eating
- Raise the head of your bed if it's worse at night
- Ask your prescriber before using regular antacids or reflux medication
When to call your doctor
- Severe chest pain, or difficulty or pain when swallowing
- Vomiting blood or black, tarry stools
Track this against your dose. Logging heartburn week by week shows whether it's actually easing — and gives your prescriber real data.
Related symptoms
Educational information from Calqulate.net — not medical advice, diagnosis, or treatment. Follow your prescriber's instructions and contact a licensed clinician about your symptoms.
