Do You Still Need to Lift on a GLP-1?


Aug 6, 2026

 by Mike Barbato
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GLP-1s Aren't a Training Plan (What They Actually Do, and What You Still Have to Handle Yourself)

If you're on a GLP-1 or thinking about starting one, there's a question worth asking before you get three months in: what happens to your strength while the weight comes off?

Most guys don't ask it. They assume the scale going down is the whole win. It isn't.

What a GLP-1 actually does

These medications turn down your appetite. That's the mechanism. They don't build muscle, they don't protect it, and they don't know the difference between fat and lean tissue when your body starts running a calorie deficit. Your body just pulls from whatever's available. Left alone, that includes muscle, and muscle comes off easier than fat does.

That's not a flaw in the medication. It's just not what it's designed to do.

What I've seen in the gym

I've had guys come in six months into a GLP-1, down 30 pounds on the scale, and their strength had dropped right alongside it. They're lighter, but they're not leaner. They look smaller everywhere, not just where they wanted to. That's the tell. Weight loss without a training stimulus is often muscle loss wearing a fat-loss headline.

The fix isn't complicated, it's just not automatic

Resistance training, consistently, with enough protein to back it up. Not cardio. Cardio's fine as a supplement, it's not the fix here. Your body needs a reason to hold onto the muscle it has, and loaded strength work is that reason. Skip it, and the medication will still work exactly as advertised, quieter appetite, lower number on the scale, just not the body composition most guys actually want.

Where the line is

I'm not a doctor, and I'm not weighing in on whether a GLP-1 is right for you. That conversation belongs with your physician. What I do know is what happens in the gym while you're on one, and that part gets skipped constantly.

Where this fits into KUTS

Kettlebell KUTS is built around four training days a week, 35 to 45 minutes each, structured to protect and build strength while you're changing your body composition, whether that's through diet alone or with medical support. If you're on a GLP-1 and want the other half of this handled right, that's exactly what the program's for.

Comment or reach out with KUTS and I'll send you what it looks like.

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