How Much Protein Do You Need on a GLP-1? | Seollae

One of the most common surprises on a GLP-1 is how little you want to eat. A few bites and you're full. Some days, food barely crosses your mind.

That can feel like progress, but it creates a real challenge: getting enough protein. Protein is what your body uses to maintain muscle, and it's the nutrient most likely to fall short when your appetite drops. This guide covers how much you need, the easiest foods to get it from, and practical tips for the days you can barely face a meal.

Why protein matters more when you eat less

People on GLP-1s eat 16% to 39% fewer calories, according to a 2025 joint advisory from four leading obesity and nutrition organizations (joint advisory). When total food intake drops that much, protein often drops with it.

The advisory notes that low protein intake from reduced appetite may contribute to muscle loss during weight loss, especially for people who are older, in perimenopause or menopause, or not doing strength training. It calls sufficient dietary protein a priority for helping preserve muscle and bone.

In other words, when you're eating less, each bite matters more. Making protein the focus of the food you do eat is one of the simplest changes you can make. (For the bigger picture, see our guide to supporting muscle health on a GLP-1.)

How much protein do you need?

For most people on a GLP-1, a practical target is about 80 to 120 grams of protein a day, the simple range suggested in the joint advisory.

Here's where that comes from:

• The general recommendation for adults is 0.8 grams of protein per kilogram of body weight per day.
• During active weight loss, experts have proposed a higher target of 1.2 to 1.6 g/kg per day. In pounds, that's roughly 0.55 to 0.73 grams per pound.
• For example, a 160-pound woman would aim for about 87 to 116 grams a day.

For people with larger bodies, calculating from current weight can overestimate how much protein you actually need, which is why the advisory offers the simpler 80 to 120 gram range. It also cautions against going too low (below about 0.4 to 0.5 g/kg) or staying very high (2 g/kg or more) for long periods.

Your doctor or a registered dietitian can help you set the right target for your body, health and goals.

The easiest protein foods when you're not hungry

When your stomach fills up fast, choose foods that pack a lot of protein into a small portion. The advisory specifically recommends lower-volume, protein-dense foods like fish, eggs, Greek yogurt, cottage cheese, and nuts or nut butters.

Values are approximate and vary by brand and preparation. Check nutrition labels for exact amounts.

The advisory also recommends favoring plant proteins, dairy, seafood, eggs and lean poultry, and keeping red and processed meats to a minimum.

Tips for low-appetite days

• Eat protein first. Start every meal with the protein on your plate, before you get full on everything else.
• Eat small and often. Four or five mini-meals can be easier than three full ones.
• Set reminders. When hunger cues fade, it's easy to go hours without eating. The advisory suggests setting an alarm as a reminder to eat.
• Drink some of it. Smoothies, protein shakes and soups can feel easier than solid food on a queasy day.
• Keep easy options ready. Hard-boiled eggs, single-serve Greek yogurt and cottage cheese cups need no prep.
• Don't wait until you're starving. Going too long without eating can lead to cravings for refined carbs and sweets.

A sample day at about 100 grams

Small portions, spread out, add up quickly:

1. Breakfast: ¾ cup Greek yogurt with berries and a sprinkle of nuts (about 19 g)
2. Lunch: 3 oz tuna on whole-grain crackers (about 20 g)
3. Afternoon snack: ½ cup cottage cheese (about 12 g)
4. Late afternoon: A protein shake (about 25 g)
5. Dinner: 3 oz salmon with ½ cup edamame (about 28 g)

Total: about 104 grams of protein, without a single large meal.

Protein works best with a partner

Protein is essential, but it can't do the job alone. The joint advisory is clear that more protein by itself is likely not enough to support muscle without structured strength training, and that protein beyond what your muscles need can be stored as fat. It recommends strength training at least three times a week.

Research is also looking at what can help protein work harder. One example is HMB, a compound your body makes in small amounts from leucine, an amino acid found in protein. In a 2026 randomized crossover trial, 24 healthy adults aged 65 to 75 drank 40 grams of whey protein with or without 3 grams of HMB. In the women, adding HMB increased muscle protein building beyond protein alone, and in the full group HMB kept muscle protein breakdown lower for longer after the drink (study). It was a small, industry-funded study, and the authors call for larger trials, but it adds to more than three decades of HMB research.

That's why Seollae Protocol 01 pairs myHMB® with creatine, fiber, ginger and B12 in a daily drink mix. It isn't a protein supplement and doesn't replace protein. It's designed to work alongside the protein you eat and the strength training you do.

Frequently asked questions

How much protein do you need on a GLP-1?
Most people on a GLP-1 can aim for about 80 to 120 grams of protein a day. During active weight loss, experts have proposed 1.2 to 1.6 grams per kilogram of body weight, or roughly 0.55 to 0.73 grams per pound. A doctor or registered dietitian can set the right target for you.

What are the best protein foods when you have no appetite on a GLP-1?
Choose foods that pack a lot of protein into a small portion, such as Greek yogurt, cottage cheese, eggs, canned tuna, salmon and protein shakes. Eating protein first at each meal and having smaller meals more often also helps.

Can you get too much protein on a GLP-1?
Yes. Experts caution against staying at very high intakes of 2 grams per kilogram of body weight or more for long periods. Protein beyond what your muscles need doesn't build more muscle and can be stored as fat.

Do protein shakes count toward your protein goal?
Yes. Protein shakes and smoothies can be an easy way to reach your daily target on low-appetite days. Check the label for protein per serving, and choose options without much added sugar.

Sources

• Nutritional priorities to support GLP-1 therapy for obesity: a joint advisory from ACLM, ASN, OMA and The Obesity Society, Obesity, 2025
• The effect of HMB upon acute fed-state muscle protein turnover in older men and women: a randomized double-blind controlled crossover clinical trial, Nutrients, 2026
• myHMB® science and clinical research

This article is for general information only and is not medical advice. Talk to your healthcare provider or a registered dietitian about your protein needs, especially if you have kidney disease or another medical condition.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.