How Much Protein Should You Eat on Mounjaro?
Why protein matters during GLP-1 weight loss and how to hit your daily target with practical meal guidance.
Try the Mounjaro Protein Calculator
Why protein matters during weight loss
When you lose weight, you lose both fat and muscle. Research shows that higher protein intake during weight loss helps preserve lean muscle mass, maintain your metabolic rate, and support recovery from exercise.
GLP-1 medications like Mounjaro reduce appetite significantly, which means many people eat less overall — including less protein. Making protein a priority at every meal helps counteract this.
How much do you need?
| Goal | Protein range (g per kg body weight) |
|---|---|
| General weight loss support | 1.2–1.6 g/kg |
| Muscle preservation priority | 1.6–2.2 g/kg |
| Higher activity / exercise | 1.4–2.0 g/kg |
Use a reference weight between your current and target weight for the most practical estimate.
Practical tips
- Eat protein first at every meal — this is especially important when appetite is low
- Spread intake across 3–4 meals rather than one large serving
- Good sources: chicken, fish, eggs, Greek yoghurt, cottage cheese, lentils, tofu
- Consider a protein supplement if you struggle to eat enough from food alone
Try the calculator
Use our Mounjaro Protein Calculator to get a personalised daily target with meal-by-meal guidance.
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Last updated
Last reviewed: 2026-04-12T10:29:26.079Z.