# Should I strength train while taking a GLP-1?

By Dr. Rodante Saballa, DC, MS, CSCS, CCSP · The Movement Doctor. September 10, 2026 (updated October 18, 2026).
Dr. Rodante Saballa, DC, MS, CSCS, CCSP. Concierge sports chiropractor, Los Angeles, California.
Adapted from Dr. Saballa's voice memos, August 2026.
Author page: https://www.drrodantesaballa.com/about

## Summary

- For a movement-first clinic, a GLP-1 is a tool, not a gimmick, and not the main thing.
- Rapid weight loss does not come off as fat alone. Muscle and bone can go with it. Training is what protects them.
- Exercise works alongside the drug and helps protect what rapid weight loss can cost you.
- The drug can start the habit. The habit is the part that lasts.
- Whether a GLP-1 is right for you is a conversation with the person who prescribes it, not a blog post.

Yes. The drug can take weight off fast, and without training some of that weight is muscle and bone, so strength work is what protects what you want to keep.

## Is a GLP-1 a tool or a gimmick?

A tool. And I want to be clear about what kind.

"GLP-1s are a real thing." They have "a profound physiological effect and the ability to improve physical health, but GLP-1s in isolation are not going to be the trick." So "for a movement first clinic, GLPs fall into the category of a tool and not a gimmick."

That sentence has two halves and people only hear the first one. Tool, yes. Not the main thing, also yes.

Whether one is right for you is a conversation with the clinician who would prescribe it. I am not that person, and this is not that conversation. What I can tell you is what happens to the body that is losing weight fast, and what you have to do about it.

## What does rapid weight loss actually cost?

"You have to work out when you take GLP-1s because not only do we know that it will help enhance the effects, but it will also have protective mechanisms on your body because we know that with GLP-1 and rapid weight loss, not only does it come in the form of fat loss, but also muscle and bone loss."

Read that twice. The scale goes down and everyone celebrates, and some of what left was the muscle that holds you up and the bone that holds the muscle.

Your body keeps what it has a reason to keep. Training is that reason. "We know that exercise and fitness and performance training creates the stimulus for muscle adaptation and growth and bone adaptation and growth."

## Does exercise change what the drug does?

"GLP-1s, just like most pharmaceuticals and drugs out there, are enhanced and amplified with exercise." The drug and the training work together, and the training helps protect you from the part of the weight loss you did not want.

Drug plus training. That is the whole answer.

## What if I have never trained before?

Then this might be the best thing about it.

"GLP-1s are a great, great way for someone to build a habit and start creating a habit of fitness, but you have to work out when you take GLP-1s". If it gets you to start, that is the habit forming.

The way I start anyone is the way I start everyone: "the last question I always ask in this first verbal assessment is, what is your goal?" Losing the weight is the drug's job. What you want your body to do once it is lighter is yours, and that is what the training is built around.

## What about food?

Less food means every bite has to count.

GLP-1s "need to be supplemented with the proper fitness and strength routine and ideally the right diet around it so that people are still getting a lot of nutrient-dense foods in the minimal food that they consume."

That is the whole nutrition point in one line. If you are eating less, that is the drug. Eating well inside that smaller amount is on you, and it is what feeds the muscle you are trying to keep.

## So what is the verdict?

"For a movement first clinic, GLP-1s can prove very valuable as a tool, but they are only a tool and not the main thing."

The main thing is still the work: strength training that gives muscle and bone a reason to stay, food that carries enough in fewer bites, and a goal you can measure against. The drug is a tool. The work is still the work.

## One last thing

This is education, not medical advice, and reading it does not make me your doctor. Starting, stopping, or changing a medication is a decision for you and the clinician who prescribes it. If you are on one and want to know what your body can do with it, that is where I come in.

## Common questions

### Do I still need to exercise on a GLP-1?

Yes. Training is the stimulus for muscle and bone, and it is what protects them during rapid weight loss.

### Can a GLP-1 replace a training program?

No. In isolation it is not the trick. It works alongside a strength routine and a diet that keeps nutrients dense.

### What kind of training matters most on a GLP-1?

Strength and performance training, the kind that asks muscle and bone to adapt. The specifics come from an assessment, not an article.

### Should I start a GLP-1?

That is a decision for you and the clinician who would prescribe it. This is education about the movement side.

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