GLP-1 & Protein
How Much Protein Should You Eat on a GLP-1?
Protein is the most important nutrient for anyone losing weight on Wegovy, Mounjaro, Ozempic, or Zepbound — it's what protects your muscle while the fat comes off. Here's a simple way to find your number and actually hit it, even when your appetite is gone.
The simple formula
A widely used target for people in a weight-loss phase is 1.2 to 2.0 grams of protein per kilogram of body weight per day. The higher end of that range tends to better protect muscle during a calorie deficit, which is exactly the situation a GLP-1 puts you in.
Example: a 165 lb person = ~75 kg → a daily target of roughly 90–150 g of protein. Many people do well aiming somewhere in the middle, around 110–130 g.
If you're starting from a higher body-fat percentage, base the calculation on your goal or ideal body weight rather than current weight, so you don't overshoot.
Spread it across the day
Total protein matters most, but distribution helps. Aim for 3–5 feedings of about 25–40 g each rather than one giant protein meal. That keeps the muscle-building signal topped up through the day and is far easier on a suppressed appetite than trying to cram it all into dinner.
How to hit protein when you can barely eat
This is the real challenge on a GLP-1. The trick is to choose low-volume, high-protein, easy-to-digest foods and always eat the protein first. Reliable options:
- Protein shakes (whey, casein, or plant) — 20–30 g in a small volume; the MVP of low-appetite days
- Greek yogurt (0–2% fat) and cottage cheese
- Eggs and egg whites
- White fish, shrimp, and skinless poultry
- Tofu, tempeh, and legumes (as tolerated)
On nausea-prone days, go easy on very high-fat, high-fiber, or large-volume meals early — they sit heavy. Smaller, protein-first portions are usually much better tolerated.
Get your exact targets done for you
The Muscle Preservation Handbook includes a protein calculator, a meal-timing framework, GLP-1-friendly food lists, and a 90-day tracker so you never have to guess.
Get the Handbook — $27Protein alone isn't enough
Eating enough protein protects muscle far better when it's paired with resistance training 2–4 times a week. Protein supplies the building blocks; lifting provides the signal to use them. Together they're how you lose fat without losing strength.
More guides: How to keep muscle while on Ozempic · Preventing muscle loss on GLP-1 medications