How much protein do you need on a GLP-1?

Targets proposed during weight loss are about 1.2 to 1.6 grams of protein per kilogram of body weight a day, and a 2025 advisory from obesity and nutrition groups offers a simpler goal of 80 to 120 grams a day. With a smaller appetite, eat protein first and lean on compact foods like Greek yogurt, eggs and fish. Pair it with strength training.

Reviewed by Darshan Patel, MD, Obesity medicine physician, on 2026-11-12. Next review 2027-05-11.

Book my consultation Video consultations with an obesity medicine physician. Most major insurance accepted, plus convenient cash pay options.

Why protein matters more on a GLP-1

A GLP-1 quiets hunger, and that's a big part of how it works. The flip side is that small meals make it easy to fall short on protein, and some people go off certain foods. The joint advisory from four medical and nutrition organizations points out that getting enough protein on a GLP-1 can be hard for exactly these reasons.

Protein matters because it helps you hold on to muscle while the weight comes off, and muscle keeps you strong. Paired with strength training, it helps more of the weight you lose be fat. See keeping muscle on a GLP-1.

Your daily target

• The everyday baseline. For adults in general, the recommended amount is 0.8 grams of protein per kilogram of body weight a day. That number is being reviewed.
• While you're losing weight. Higher targets of about 1.2 to 1.6 grams per kilogram a day have been proposed during active weight loss.
• A simpler goal. Which body weight to use is unsettled, and using your current weight can overestimate your needs. So the advisory also offers a plain number: 80 to 120 grams a day.
• Not too little, not too much. The advisory says intake shouldn't fall below about 0.4 to 0.5 grams per kilogram a day, and that staying above about 2 grams per kilogram a day for a long time should be avoided.

Your dietitian can turn this into a number that fits you.

Protein first, every meal

1. Eat the protein part of your plate first. The advisory suggests this so you get it in before you feel full.
2. Choose compact, protein-dense foods. Fish, eggs, Greek yogurt, cottage cheese, and nuts and seeds or their butters pack a lot into a small portion.
3. Mix in plants. Beans, peas, lentils, tofu and whole grains count too.
4. Go easy on red and processed meats. The advisory suggests keeping them moderate, because of their links to type 2 diabetes, heart disease and colorectal cancer.
5. Use shakes and bars as backup. They help some people reach their target on low-appetite days.

How much protein is in everyday foods

Figures are from the USDA's FoodData Central database. Brands vary, so check the label on packaged foods.

What a day can look like

Here's one way to reach about 90 grams, in portions that suit a smaller appetite:

• Breakfast: a container of plain Greek yogurt and a hard-boiled egg (about 24 grams)
• Lunch: 3 ounces of tuna over greens with half a cup of lentils (about 31 grams)
• Snack: half a cup of cottage cheese (about 12 grams)
• Dinner: 3 ounces of roasted chicken with vegetables (about 26 grams)

This is an example, not a prescription. Your dietitian will shape a plan around the foods you like, your culture and your schedule.

Protein works best with strength training

The joint advisory is clear that more protein alone is unlikely to protect muscle without structured strength training. A 2026 review of 20 trials found that in weight-loss programs that added strength training, lean mass made up the smallest share of the weight lost. The advisory suggests strength work at least 3 times a week. See keeping muscle on a GLP-1 for a simple plan.

These habits also matter later. If you ever stop your medicine, read stopping Wegovy or Zepbound without regaining, and for the bigger picture, do I have to take a GLP-1 forever?

A physician and a dietitian on your side

At Aayu Well, an obesity medicine physician sees you by video and builds your weight plan, with GLP-1 medicines when they're right for you. A registered dietitian helps you hit your protein target with food you enjoy. Your care team is a message away between visits, and your plan is built for keeping the weight off.

Most major insurance accepted, plus convenient cash pay options. Book my consultation

Good to know

• If you have kidney disease or another condition that changes your nutrition needs, your physician and dietitian will set your protein target with you.
• If nausea or other stomach side effects make it hard to eat, tell your care team. Managing them is part of good GLP-1 care.
• Protein targets for people on GLP-1 medicines come mostly from expert consensus and indirect evidence, because direct trials are still lacking. We'll update this guide as research comes in.

More physician-reviewed guides are in Learn, and our editorial policy explains how we choose sources and grade evidence.

Questions people ask

Can an Aayu Well dietitian help me hit my protein goal?

Yes. A registered dietitian works out a target that fits your body and your appetite, and helps you build meals and snacks you'll enjoy. Your obesity medicine physician leads your overall weight plan. Most major insurance accepted, plus convenient cash pay options.

Do I need protein shakes?

Not necessarily. Food comes first, and compact foods like Greek yogurt, eggs, fish and cottage cheese go a long way. Shakes, bars and other high-protein products help some people reach their target when appetite is very small.

Can I get enough protein from plants?

Plant foods count. The joint advisory encourages beans, peas, lentils and whole grains. A cup of cooked lentils has about 18 grams of protein and half a cup of firm tofu about 22 grams. A dietitian can help you combine them to reach your target.

Can I eat too much protein?

Yes. The joint advisory says intake above about 2 grams per kilogram of body weight a day should be avoided over the long term, and that protein beyond what your muscles need can be stored as fat. If you have kidney disease or another condition that affects your diet, your physician and dietitian will set your target with you.

Which body weight do I use for the math?

Experts don't fully agree. Using your current weight can overestimate what you need if you carry a lot of extra weight, which is one reason the advisory offers a simple 80 to 120 grams a day. Your dietitian can personalize it.

Sources

1. Mozaffarian D, et al. Nutritional priorities to support GLP-1 therapy for obesity: a joint advisory from the American College of Lifestyle Medicine, the American Society for Nutrition, the Obesity Medicine Association and The Obesity Society. Obesity Pillars. 2025;15:100181
2. USDA FoodData Central, SR Legacy foods 171477, 171986, 172475, 172421, 170894, 172182 and 173424 (protein per portion)
3. Eisa N, Barood O. Lean mass changes with incretin therapy versus lifestyle intervention: a systematic review and meta-analysis of randomised controlled trials. Diabetes Obes Metab. 2026;28(6):4818-4827
4. Sievenpiper JL, et al. Nutritional and lifestyle supportive care recommendations for management of obesity with GLP-1-based therapies: an expert consensus statement using a modified Delphi approach. Obesity Pillars. 2026;17:100228