GLP 1 & Weight Loss

What Happens If You Take Mounjaro Without Eating?

Andre Stone | MD

Medically reviewed by Andre Stone | MD, University of Pittsburgh School of Medicine on August 23rd, 2026.

Mounjaro can cause nausea and other digestive side effects, but it may be injected with or without food. If digestive side effects are bothersome or do not go away, contact your healthcare provider. Nausea is a common side effect of Mounjaro, especially while the dose is being increased, but evidence that injecting it on an empty stomach worsens nausea has not been established here. Mounjaro can cause stomach pain, vomiting, and diarrhea whether or not it is taken with food. The duration of these symptoms varies. You do not need to eat before injecting Mounjaro, and food has not been shown to make the injection more effective. Follow your prescribed dosing schedule and ask your healthcare provider how to manage side effects.

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