Common Mounjaro Side Effects and General Coping Strategies
Mounjaro (tirzepatide) is a once-weekly injectable medicine that works on GLP-1 and GIP receptors. Many of the side effects people want to reduce are linked to how it affects the digestive system — slowing gastric emptying and altering appetite signals. These effects are commonly reported, particularly after a dose change, and often ease over time.
Nausea and sickness
Nausea is one of the most frequently reported experiences, especially in the early weeks or after a dose adjustment. Many people find it most noticeable in the day or two after an injection. Eating smaller portions, avoiding rich or fatty foods, and staying hydrated are general strategies that some people find helpful — but if nausea is severe or persistent, contact your healthcare professional rather than trying to manage it alone.
Diarrhoea
Loose stools and diarrhoea are also commonly reported, again often linked to the medicine's effect on gastric emptying. Staying well hydrated matters here. If diarrhoea is frequent, prolonged, or accompanied by other symptoms, speak with your prescriber or doctor promptly.
Sulphur and eggy burps
Sulphur-smelling burps are a widely discussed side effect. They are thought to be connected to slower digestion, which gives more time for gut bacteria to produce sulphurous gases. Some people find that avoiding foods high in sulphur compounds (such as eggs, onions, and cruciferous vegetables) reduces the frequency. This is general dietary context, not medical advice — your own response may differ.
Hair loss
Hair shedding, sometimes called telogen effluvium, is reported by some people on Mounjaro, including many women. It is generally understood to be related to the physical stress of rapid weight change and reduced calorie intake, rather than a direct effect of the medicine itself. Ensuring adequate protein intake is commonly suggested as a general supportive measure. Hair loss linked to rapid weight change often resolves over time, but discuss any concerns with your healthcare professional — they can rule out other causes.
Thinking about stopping treatment altogether?
If you are considering discontinuing Mounjaro — whether due to side effects, reaching your goals, or another reason — this is a decision that should be made with your prescriber or doctor, not independently. For a fuller look at that decision, see our pages on when to stop Mounjaro and how to stop taking Mounjaro, as well as what to consider if you are thinking about pausing Mounjaro for a short period. For a broader overview of the medicine, visit our Mounjaro guide.
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How Tracking Can Help You Navigate These Challenges
One of the most useful things you can do when managing side effects — or deciding whether to continue treatment — is to keep a clear, timestamped record of what you are experiencing. Patterns are hard to spot in memory alone, but easy to see in a log.
GLP Trackr's side-effect tracking feature lets you record symptoms like nausea, diarrhoea, burping, fatigue, or hair changes alongside the date and your dose, so you can see whether they follow a pattern — for example, whether they cluster in the day or two after an injection, or ease as weeks pass. That kind of structured record is genuinely useful to bring to a prescriber appointment, so the conversation is based on real data rather than a rough impression.
Alongside side-effect logging, the app's food diary — including a quick AI photo scan — makes it straightforward to keep an eye on your protein intake, which matters if hair shedding is a concern. You can also log your weight and mood over time to build a picture of your overall journey rather than focusing on any single difficult day.
GLP Trackr also includes dose and injection logging, so you always have a clear record of when your last shot was taken — useful context if you are discussing with your prescriber whether to continue, pause, or adjust anything about your treatment.
Always follow the guidance of your prescriber or doctor — they know your full medical history and are best placed to advise on any decision about your treatment. If any symptom is severe, persistent, or worrying, contact a healthcare professional promptly rather than waiting. GLP Trackr helps you record what you are going through so you can have better, more informed conversations — it is not a substitute for clinical advice.
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Frequently asked questions.
Nausea on Mounjaro is commonly reported, especially after a dose change. Many people find smaller meals and avoiding fatty or rich foods helps. If nausea is severe or persistent, contact your healthcare professional — they can advise on the best approach for you.
Sulphur burps are a commonly reported side effect linked to slower digestion. Some people find reducing sulphur-rich foods — such as eggs, onions, and cabbage — helpful. Results vary individually. If burping is severe or accompanied by other symptoms, speak with your prescriber or doctor.
Hair shedding on Mounjaro is often linked to rapid weight change and reduced calorie intake rather than the medicine directly. Ensuring adequate protein intake is a commonly suggested general measure. Hair loss of this type often resolves over time, but discuss any concerns with your healthcare professional.
Whether to continue, pause, or stop Mounjaro is a decision for your prescriber or doctor, based on your individual situation. Do not stop or change your treatment without speaking to them first. If a side effect is severe or worrying, contact a healthcare professional promptly.
GLP Trackr lets you log side effects — such as nausea, diarrhoea, or burping — alongside your dose and the date, so you can spot patterns over time. This record can help you have more informed conversations with your prescriber. The app does not provide medical advice.