Protein is the question almost everyone on a GLP-1 medication ends up asking. Your appetite drops, portions shrink, and it gets surprisingly hard to eat enough of it. This guide explains what published guidance says about protein, how to spread it across smaller meals, and which high-protein, low-calorie foods make it easier.
Your prescriber and a registered dietitian are the right people to set your personal protein target. The ranges below are general, so use them to understand the conversation, not to replace it.
Why protein matters more when you eat less
When total food intake falls, protein often falls with it. That matters because the body needs protein to maintain muscle. A 2025 joint advisory on nutrition for GLP-1 therapy, from the American College of Lifestyle Medicine, the American Society for Nutrition, the Obesity Medicine Association and The Obesity Society, lists adequate protein and strength training among its priorities to help preserve lean mass.
How much protein on a GLP-1? What the published ranges say
The advisory describes three reference points:
- 0.8 g per kilogram of body weight a day is the standard Recommended Dietary Allowance for adults.
- 1.2 to 1.6 g per kilogram a day is a range often suggested during active weight reduction.
- 80 to 120 g a day is an absolute target some clinicians use because it is simpler to follow than a per-kilogram number.
For people with a higher body weight, clinicians often base the math on an adjusted or goal weight rather than current weight. That is one more reason to get your number from your care team.
Turn a daily number into small meals
A daily target is easier to hit in pieces. If your appetite allows three small meals and one snack, an 80 to 100 g day works out to roughly 20 to 30 g at each sitting. That is a practical number to plan around: it is about one serving of a protein food plus one protein-rich base.
Two habits help most:
- Eat the protein first. If you fill up after a few bites, the first bites should be the ones that count.
- Do not wait until you are hungry. A reduced appetite can mean no hunger cue until late in the day. Plan meals by the clock.
High-protein, low-calorie foods to build on
| Food and serving | Calories | Protein |
|---|---|---|
| Chicken breast, cooked, 3 oz | about 140 | about 26 g |
| Tuna, canned in water, 3 oz | about 100 | about 20 g |
| Greek yogurt, plain nonfat, 3/4 cup | about 100 | about 17 g |
| Cottage cheese, 2%, 1/2 cup | about 90 | about 12 g |
| Egg, 1 large | about 72 | about 6 g |
| String cheese, 1 stick | about 80 | about 7 g |
| Lentils, cooked, 1/2 cup | about 115 | about 9 g |
| ThinSlim Zero Net Carb Bagel, 1 bagel | 90 | 14 g |
| ThinSlim Xtreme Bagel, 1 bagel | 50 | 12 g |
| ThinSlim Zero Net Carb Bread, 1 slice | 45 | 7 g |
Whole-food figures are approximate values from USDA FoodData Central and vary by brand and preparation. ThinSlim figures are from our package labels.
The bottom three rows are the part most people miss. A regular bagel gets most of its calories from carbohydrate. A Zero Net Carb Bagel adds 14 g of protein for 90 calories, so the base of the meal starts working toward your target instead of taking up room.
An example day at about 25 g per meal
This is an illustration of the math, not a meal plan. Portions and totals are approximate.
- Breakfast, about 26 g: a Zero Net Carb Bagel with two scrambled eggs. Short on time? Our Everything Bagel breakfast sandwiches are made ahead and frozen.
- Lunch, about 27 g: 3 oz tuna salad on one slice of Zero Net Carb Bread, open-faced, with cucumber on the side.
- Snack, about 23 g: 3/4 cup Greek yogurt with berries, plus an Xtreme Muffin (6 g protein) if you have room.
- Dinner, about 26 to 30 g: 3 oz chicken with roasted vegetables and a small portion of Impastable pasta. Or try our Greek Chicken Pita Pockets.
If one meal falls short, it is fine. Protein adds up across the day.
When solid food is hard to face
Some days, a full plate is not going to happen. Softer and drinkable options can still carry protein:
- A glass of milk, about 8 g per cup.
- Greek yogurt or cottage cheese, cold and easy to eat in small spoonfuls.
- Eggs, soft scrambled or hard-boiled and eaten a half at a time.
- A ready-to-drink protein shake. Check the label for protein, sugar and serving size, and ask your prescriber if you are unsure.
Cold, mild foods are often easier than hot, rich ones on a low-appetite day.
Pair protein with movement
The joint advisory pairs adequate protein with strength training to help preserve lean mass. Ask your care team what kind of activity is right for you.
Keep your protein staples on hand
The easiest protein is the one already in the kitchen. Keep a few no-cook options stocked, and keep a protein-rich base in the cupboard. Unopened ThinSlim Foods bread and bagels have a one-year shelf life in our preservative-free packaging.
- Zero Net Carb Bagels: 90 calories, 14 g protein, 14 g fiber
- Xtreme Bagels: 50 calories, 12 g protein, 14 g fiber
- Zero Net Carb Bread: 45 calories, 7 g protein, 7 g fiber per slice
- Power Pitas: 45 calories, 7 g protein, 7 g fiber
For the full approach to small meals, read What to Eat on a GLP-1: Building Small Meals That Still Count. For fiber, see High-Fiber, Low-Calorie Foods for Eating Less on a GLP-1.
Common questions
How much protein should I eat on Ozempic, Wegovy, Mounjaro or Zepbound?
There is no single number for everyone. Published guidance describes 1.2 to 1.6 g per kilogram a day during active weight loss, or 80 to 120 g a day as a simpler target. Your prescriber or a registered dietitian can tell you which number fits you.
How much protein should I eat per meal on a GLP-1?
Splitting your daily target across your meals is the practical approach. For many people, that works out to about 20 to 30 g per meal or snack.
What are the best high-protein, low-calorie foods?
Chicken breast, canned tuna, Greek yogurt, cottage cheese, eggs and string cheese are easy options. Breads and bagels made with added protein, like Zero Net Carb Bagels at 14 g protein for 90 calories, help the base of the meal contribute too.
Is it OK to use protein shakes on a GLP-1?
Many people use them on days when solid food is hard. Read the label for protein, sugar and serving size, and check with your prescriber if you have questions.
ThinSlim Foods makes food, not treatment, and is not affiliated with the makers of any medication named here. Ozempic, Wegovy, Mounjaro and Zepbound are trademarks of their respective owners. Nutrition figures for ThinSlim Foods products are from our package labels.
