Keto Diet Plan for Weight Loss: What to Know on Mounjaro or Wegovy

A classic ketogenic diet typically limits carbohydrate intake to a small daily amount — often cited in nutritional literature as around 20–50 g of net carbs per day — pushing the body into a metabolic state called ketosis, where fat becomes the primary fuel source. On a GLP-1 medicine like Mounjaro (tirzepatide) or Wegovy (semaglutide), appetite is already significantly reduced for many people, which can make sticking to lower-carb eating feel more manageable than before.

What a keto diet plan for weight loss typically includes

• Proteins: eggs, fish, poultry, lean red meat — protein is especially important on GLP-1 medicines to help preserve muscle mass while losing weight
• Healthy fats: avocado, olive oil, nuts, seeds, oily fish
• Non-starchy vegetables: leafy greens, courgette, broccoli, cauliflower, cucumber — these provide fibre and nutrients without pushing carbs high
• Foods to limit: bread, pasta, rice, most fruit, starchy vegetables, sugary foods and drinks

A few practical considerations

Because GLP-1 medicines slow gastric emptying, heavy or very high-fat meals can sometimes worsen nausea or feelings of fullness that are already common in the early weeks. Many people find that smaller, protein-first meals sit more comfortably. If you are also managing a condition such as type 2 diabetes, the combination of a ketogenic diet and a GLP-1 medicine may affect blood sugar management — always check with your prescriber or doctor before making significant dietary changes.

If you are curious how a keto approach fits into a broader calorie-based framework, our guide to maintaining a calorie deficit explains how energy balance works alongside dietary choices. You may also find it useful to compare approaches: see our general diet plan for weight loss or explore structured diet plan options for more context.

Staying on top of carbohydrate and protein intake is one of the trickier parts of a keto diet plan — especially when appetite is unpredictable on a GLP-1 medicine. GLP Trackr's AI photo scan makes this easier: point your camera at a meal and get an instant breakdown of calories, protein, and macros without manually searching every ingredient. That quick visibility means you can see at a glance whether you are hitting your protein goal and keeping carbs where you want them, even on days when appetite is low and meals are small.

You can also set a daily protein target and a calorie goal inside the app, so progress is tracked automatically rather than in your head. If you want to understand how your food choices connect to how you feel or how your weight moves week to week, the insights tools can surface those patterns from your own data — useful information to bring to your next appointment. For a broader look at how different eating styles fit into your journey, the weight loss diet plan guide covers the wider picture.

GLP Trackr is a tracking and journaling tool — it is not a substitute for advice from your prescriber or doctor. If you have questions about whether a ketogenic approach is right for your health situation, especially if you have diabetes or another condition, please discuss this with your healthcare professional before making changes.

Snap your first meal and see your macros in seconds — GLP Trackr is free to try for 7 days on the App Store and Google Play.