Yes. Between 40-70% of people taking GLP-1 receptor agonists experience gastrointestinal side effects, most commonly nausea, constipation, diarrhea, bloating, and acid reflux. These side effects are usually most pronounced during the first few weeks of treatment or after a dose increase, and they typically improve as your body adjusts. However, only about 5-10% of people find the side effects severe enough to stop treatment.

For most people, the worst GI symptoms occur during the first 2-4 weeks of starting the medication or after each dose escalation. Symptoms typically improve as your body develops tolerance. If your symptoms persist beyond 4-6 weeks at the same dose without improving, that's worth discussing with your prescriber — it could indicate a need for dose adjustment or further investigation.

GLP-1 drugs work by activating receptors that slow gastric emptying — food stays in your stomach longer, which creates a feeling of fullness but can also trigger nausea. The medication also affects the vagus nerve, which connects your gut to your brain. Eating large meals, high-fat foods, or eating too quickly can make nausea significantly worse. Smaller, more frequent meals are the most effective dietary strategy.

Focus on lean proteins (chicken, fish, eggs, Greek yogurt), water-rich vegetables, and simple carbohydrates when nausea is worst. Avoid high-fat, fried, and greasy foods — these slow gastric emptying further and worsen nausea. Eat slowly, chew thoroughly, and stop when you feel comfortably full. Many people find that bland foods (crackers, toast, rice, bananas) are easiest during the first weeks of a new dose.

The most effective strategies are: eat smaller, more frequent meals; avoid high-fat and fried foods; try ginger (chews, tea, capsules); stay hydrated with 80+ oz of water daily; walk for 10-15 minutes after eating; avoid lying down for 2 hours after meals; and eat slowly. If nausea persists, ask your doctor about ondansetron (Zofran). Over-the-counter Dramamine also helps many people.

Contact your prescriber if: you're vomiting frequently and can't keep food down; symptoms are getting worse after 4+ weeks on the same dose; you experience severe abdominal pain; you notice signs of dehydration; you're losing weight too rapidly; or you develop signs of gastroparesis (feeling full after a few bites, vomiting undigested food).

GLP1Gut is a mobile app being built specifically for people experiencing digestive side effects on GLP-1 medications like Ozempic, Wegovy, Mounjaro, and Zepbound. It tracks your meals, symptoms, medication doses, and bowel movements, then uses AI to find patterns. It includes an 'Is This Normal?' engine that tells you whether your symptoms are typical or warning signs.

GLP1Gut is currently in development. Join the waitlist to be notified as soon as it launches on iOS. We'll send you one email when the app is ready — no spam.

Most GLP-1 apps are general weight loss trackers with a basic side effect checkbox. GLP1Gut is built for digestive health — 15 GI-specific symptoms, dose-symptom correlation, gastroparesis and SIBO warning flags, and clinical-grade reports for your gastroenterologist, functional medicine practitioner, or nutritionist.

Yes. All your health data is stored on your device. You don't need an account, and your medication and symptom data never leaves your phone unless you export it. We make money from the app subscription, not from your data.