Protecting Muscle on a GLP-1: Protein & Creatine Guide

GLP-1 & Muscle Preservation

Keep Your Muscle While You Lose Weight on a GLP-1

GLP-1 medications like Ozempic, Wegovy, Mounjaro, and Zepbound solve the eating problem. They do not solve the muscle problem. Here is the research-backed plan to protect your muscle while the scale drops, and the simplest way to actually follow it.

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In clinical trial substudies, roughly a quarter to two-fifths of the weight lost on GLP-1 medications came from lean mass rather than fat. Muscle loss on a GLP-1 is not inevitable, and the countermeasures are not complicated.

The three-part plan to protect your muscle

Every credible recommendation for preserving lean mass during rapid weight loss comes down to the same three levers. None of them are complicated, and they work together.

Lever 1

Resistance training

2 to 3x / week

Lifting is the single strongest signal to keep the muscle you have. Two or three full-body sessions a week is enough for most people.

Lever 2

Protein target

1.2 to 1.6 g/kg / day

The hardest lever to hit when your appetite is switched off. Aim for 25 to 30 grams per serving so each one does its job.

Lever 3

Creatine

3 to 5 g / day

The most studied supplement in sports nutrition. Combined with training, it supports the strength and lean mass you are trying to protect.

Read the research, guide by guide

We wrote a five-part series on exactly how this works, each piece grounded in the clinical trials and written in plain English. Start with the flagship, then go deeper where it matters to you.

Where Nutrition On The Go fits

The hardest part of this plan is practical: getting 25 to 30 grams of protein into a body that does not want food. Small volume, high protein is the play, and that is exactly what our packets were built for.

The 2-in-1 protein + creatine packet

  • 25g of whey protein isolate, right at the per-serving threshold for muscle protein synthesis
  • A full 5g of creatine monohydrate, your entire daily dose, in the same shake
  • About 110 calories, so it fits an appetite that is switched off
  • 3rd-party tested, and it mixes in seconds with just water
  • Prefer plant-based? The vegan packet delivers 20g of complete protein and the same 5g of creatine
25g
Protein
5g
Creatine
~110
Calories

Dial in your numbers

Not sure what your daily targets should be? These free calculators give you a personalized number in seconds.

Common questions

Does everyone lose muscle on a GLP-1?

No. The trial averages include many people who did no resistance training and ate very little protein. Those who train and hit their protein targets keep substantially more lean mass. The published losses are an average outcome, not a fixed price.

How much protein should I eat on a GLP-1?

Research on weight loss supports 1.2 to 1.6 grams per kilogram of body weight per day, split into 25 to 30 gram servings. Talk with your prescriber or a registered dietitian about the right target for your situation.

Is creatine safe to take with a GLP-1 medication?

There are no known interactions between creatine monohydrate and GLP-1 receptor agonists, and creatine has one of the strongest safety records of any supplement. As with anything you add while on a prescription, clear it with your prescriber first.

Why packets instead of a tub?

When your appetite is suppressed, a small, high-protein shake you can sip goes down when a full meal will not. One packet covers a protein serving and your daily creatine in one step, and it travels anywhere.

This page is for education, not medical advice. Nutrition On The Go products are not intended to diagnose, treat, cure, or prevent any disease, and are not a treatment for any medication or its effects. Always talk with your prescriber before changing your nutrition, training, or supplement routine while on a GLP-1 medication.