Sulfur Burps (Egg-Smelling Burps) on a GLP-1
Burping that smells like rotten eggs is a common complaint among people on GLP-1 and tirzepatide medications. It is unpleasant and usually more embarrassing than dangerous. In Zepbound's weight-loss trials, 4% to 5% of adults reported belching, compared with 1% on placebo.
Why It Happens
Food stays in the stomach longer when stomach emptying slows, and gut bacteria have more time to ferment it. Sulfur-containing foods can add to the smell. This is an explanation people commonly give, not a diagnosis.
Practical Strategies
- Eat smaller meals and slow down. Less food sitting in the stomach gives gas less to work with.
- Notice sulfur-rich foods in your own diet, such as eggs, broccoli, cabbage, onions, garlic, and red meat, and see whether cutting back helps.
- Limit carbonated drinks, which add gas.
- Skip lying down right after you eat.
- Keep a short food note for a week to spot your personal triggers.
- If it comes with persistent pain, vomiting, or you cannot eat, call your prescriber.
Products That May Help
Affiliate disclosure →These are specific products we recommend based on evidence and community feedback. Links are affiliate links — we may earn a commission at no extra cost to you.
Questions to Ask Your Clinician
Bring these to your next appointment. Your prescriber is your best resource for decisions specific to your situation.
- “Is this normal at my dose, or something to look into?”
- “Should I change when or how much I eat around my injection day?”
- “Is it safe for me to try a digestive enzyme or an antacid?”
- “Which symptoms alongside this mean I should be seen in person?”
Sources
Percentages come from clinical trials of one medication and are not a prediction for you. Your experience may differ.
Want to understand your medication?
Compare Ozempic, Wegovy, Mounjaro & Zepbound — active ingredients, approved uses, and trial data.
Your feedback helps us improve the guide.
Get weekly peptide and GLP-1 aftercare tips
Practical, judgment-free guidance delivered to your inbox. No medical advice. No fluff.
Get Free Guide + Newsletter →