Sulfur Burps on Mounjaro, also known by its generic name tirzepatide, has quickly gained attention for helping people with type 2 diabetes and weight loss. But along with its impressive results, some users experience an unexpected side effect: sulfur burps.

If you’ve noticed burps that smell like rotten eggs after starting Mounjaro, you’re not alone. These “sulfur burps” can be embarrassing, unpleasant, and confusing for people who are otherwise doing well on the medication.

This article explains why this happens, what it means for your body, and how to stop sulfur burps fast while continuing to benefit from Mounjaro.

Sulfur Burps on Mounjaro, and How Does It Affect Digestion?

Mounjaro (tirzepatide) is an injectable medication developed by Eli Lilly that works as a dual GLP-1 and GIP receptor agonist.

It helps regulate blood sugar and supports weight loss by:

• Improving insulin sensitivity
• Slowing stomach emptying
• Reducing appetite

However, the same process that helps you feel fuller for longer can sometimes slow down digestion too much. When food stays in your stomach longer, it can start to ferment, creating gas that smells like sulfur, similar to rotten eggs.

This is why sulfur burps are one of the lesser-known digestive side effects of Mounjaro.

 What Are Sulphur Burps on Mounjaro?

Sulfur burps happen when your body releases hydrogen sulfide gas, a byproduct created when bacteria in your stomach or intestines break down sulfur-rich foods.

Foods that commonly cause this gas include eggs, garlic, onions, red meat, and some vegetables like broccoli or cabbage.

When combined with slower digestion from Mounjaro, that gas builds up and escapes through burping, leaving behind a strong sulfur-like smell.

Why Do Sulfur Burps Happen on Mounjaro?

There are a few key reasons why users experience this side effect:

1. Slowed Digestion

Mounjaro slows the speed at which food moves through your stomach. This delay gives bacteria more time to break down sulfur-containing compounds, leading to hydrogen sulfide gas.

2. Changes in Gut Bacteria

GLP-1 and GIP medications can slightly alter your gut microbiome. During this adjustment phase, you might notice temporary gas and bloating.

3. High-Protein or Fatty Diet

Eating protein-rich or greasy meals while on Mounjaro can worsen sulfur burps because these foods take longer to digest.

4. Dehydration

Some people don’t drink enough water while using Mounjaro, which slows digestion even more and increases the chance of fermentation and gas build-up.

5. Sulfur-Heavy Foods

Consuming foods like eggs, garlic, and onions can trigger or intensify sulfur burps, especially when your stomach is already processing food more slowly than usual.

 Are Sulphur Burps on Mounjaro Dangerous?

In most cases, sulfur burps caused by Mounjaro are harmless and temporary. They usually appear within the first few weeks of starting the medication and improve as your body adjusts.

However, if the burps are accompanied by vomiting, severe nausea, abdominal pain, or persistent bloating, it’s important to contact your healthcare provider. These could be signs of delayed gastric emptying (gastroparesis) or other digestive issues that might need medical attention.

Common Food Triggers

Many users notice that sulfur burps get worse after eating certain types of meals.

To reduce this side effect, limit or avoid:

• Eggs and foods made with eggs
• Garlic and onions
• Broccoli, cabbage, cauliflower, and kale
• Fried or fatty foods
• Red meat and fish in large amounts
• Carbonated drinks like soda or sparkling water
• Artificial sweeteners such as sorbitol or xylitol

Instead, eat light, balanced meals that include lean proteins, vegetables, fruits, and plenty of water.

How Long Do Sulfur Burps Stick Around on Mounjaro?

Here’s the deal: most people notice these rank burps within the first couple of weeks of starting Mounjaro. Usually, they chill out once your body gets used to the new routine. How long are you stuck with them? Honestly, it’s all over the place. It depends on what you’re eating, how hydrated you are, whether you’re actually moving around, and if your gut is in a mood. Tweak your meals, keep slamming water, and most folks are back to normal in a week or two. If your stomach’s extra dramatic, maybe three.

Tips to Keep Sulfur Burps in the Past  

• Actually wanna keep the burps away?  
• Eat some real food. Like, not just chips and soda, throw some fiber in there.  
• Chug water like you’re prepping for a desert trip.  
• Don’t stuff yourself or sneak snacks at 2 a.m.  
• Move, even if it’s just a little.  
• And honestly? Track what you eat, you might be surprised what sets you off.
• Bonus: Your whole digestive system will send you a thank-you note.

Real People, Real Burp Struggles  

Scroll through any Mounjaro forum and you’ll see people griping about sulfur burps, especially after bumping up their dose or going wild with their diet. But once things settle down or they figure out which foods are ticking off their guts, the burps usually back off. It’s honestly just a waiting game. Annoying as hell, but not forever and the med actually works for weight and blood sugar, so most folks tough it out.

Digestive Relief

Mounjaro and Sulfur Burps Blame slow digestion and some sneaky sulfur-heavy foods. Super annoying, not dangerous. Drink water, eat a little less, avoid trigger foods, and maybe try out probiotics or herbal teas. If you’re still burping up the funk, just call your doctor already; they’ve seen way worse.  

These burps suck, no doubt, but out of all the side effects? They’re one of the easier ones to boot. Once your gut chills out, you get all the perks of Mounjaro minus the rotten egg soundtrack.