Should You Use a GLP-1? What Women Over 40 Need to Know

Few topics in fitness spark more opinions right now than GLP-1 medications. Some people call them a miracle. Others call them cheating. Most women I talk to are somewhere in the middle, curious, a little nervous, and tired of the noise.

So here’s a coach’s take: no hype, no shame, and a focus on what you can control.

First: is it “cheating”?

No.

GLP-1 medications, like semaglutide and tirzepatide, are prescription medications that affect appetite, blood sugar, and how quickly your stomach empties. For some people, they’re a genuinely helpful medical tool.

Whether one is right for you is a decision for you and your healthcare provider. It isn’t up to your coach, your neighbor, or the comment section.

My job is to make sure that if you do use one, you come out the other side stronger, not just smaller.

The muscle problem nobody talks about

When you lose weight, especially quickly, you don’t only lose fat. Some of what you lose can be muscle.

For women over 40, that matters a lot. We’re already losing muscle more easily because of age and the hormone shifts of perimenopause and menopause. Muscle supports:

• your metabolism
• your bones and joints
• your balance and everyday strength
• your ability to keep the weight off long-term

Lose too much of it, and you can end up at a lower number on the scale but feeling weaker, more tired, and less capable than before.

What to pair with a GLP-1

If you’re using a GLP-1, or considering one, these are the non-negotiables I’d want you to talk through with your provider and your coach.

1. Strength training

This is the single best way to signal to your body that it needs to keep its muscle. Two to three sessions a week of lifting weights, using bands, or doing bodyweight work makes a real difference.

2. Protein, even when you’re not hungry

GLP-1s reduce appetite, which is part of how they work. But less appetite often means less protein, and protein is what your muscles need. Make protein the first thing on your plate at every meal.

3. Fluids and fiber

Lower appetite can mean lower water and fiber intake too. That’s a common recipe for constipation, headaches, and fatigue.

4. Real follow-up with your provider

Regular check-ins help your provider adjust your dose, monitor side effects, and make sure the plan is working for your whole health, not just the scale.

Signs your plan is missing something

These aren’t reasons to panic. They’re reasons to check in with your prescriber and your plan.

• You feel weaker, even though you’re losing weight. You may be losing muscle. Add or increase strength training and protein.
• You’re exhausted all the time. You may be eating too little overall.
• Your hair is thinning. This can happen with rapid weight loss and low protein intake.
• You’re constipated or rarely drinking water. Fluids and fiber may need attention.
• You stopped exercising because “the shot is doing the work.” The medication doesn’t build muscle. You do.

GLP-1s also commonly cause digestive side effects like nausea, vomiting, diarrhea, or constipation, especially when starting or increasing the dose.

Contact your provider right away if you have severe stomach pain, vomiting that won’t stop, or can’t keep fluids down. Don’t wait it out.

What about when you stop?

Many people regain some weight after stopping a GLP-1. That’s one more reason the habits you build alongside it matter so much: strength training, protein, sleep, and a sustainable way of eating. Those are what you keep when the prescription ends.

The bottom line

A GLP-1 can change the number on the scale. It can’t do your squats for you.

If you and your doctor decide it’s right for you, make sure it isn’t the only thing you’re doing. Lift. Eat your protein. Protect the muscle you’ve got. That’s how you come out of this stronger, not just smaller.

Your next step

Start with the free guide. Our BRAND NEW GLP-1 FAQ Guide can help you find out if a GLP-1 is right for you, and the best questions to ask your provider.  Get your FREE GUIDE HERE!

Want help building the strength side? Check out our Strength Class and Remote Options HERE!

This post is for general education and isn’t medical advice. Talk to your healthcare provider before starting, stopping, or changing any medication or exercise program.