GLP-1 medications like semaglutide and tirzepatide can cause real side effects — nausea, fatigue, and stomach issues are common. For a full breakdown of what to expect, see our Complete Guide to GLP-1 Side Effects. These symptoms can make working out feel like the last thing you want to do.

But here's the truth: staying active while on these medications is one of the best things you can do for your results. Research shows that combining exercise with GLP-1 medications reduces belly fat and lowers inflammation more than medication alone.

If you're ready to start or optimize a GLP-1 program, Hims offers physician-supervised weight loss plans with ongoing support to help you manage side effects along the way. → Check your eligibility here

Women can explore Hers GLP-1 programs, which include weight loss support tailored to your biology. → See if Hers is right for you

The challenge is figuring out how to keep moving when your body feels unpredictable. That's what this guide is about.

Most workout plans are built on one big assumption: that you feel the same every day. GLP-1 medications break that assumption fast.

Your energy might be great on Monday, then you feel queasy on Tuesday and wiped out by Thursday. A plan that doesn't account for this is a plan that's going to fail.

The good news is that a small shift in approach makes a huge difference. Instead of following a fixed schedule, you learn to work with your body's patterns.

This is the most important step — and most people skip it. When you don't know your patterns, every bad day feels like a reason to quit.

Here's what to track each day in a simple notebook or phone note:

After two weeks, you'll start to see a pattern. Most people find their nausea peaks at a specific time after their injection but is much lighter at other points. This information changes everything about when you schedule workouts.

Once you have your tracking data, answer these three questions:

These answers reveal your "exercise windows" — the times when working out feels manageable or even good. Schedule your workouts there, even if it means exercising at unusual hours.

Not every workout needs to be the same. The goal is to keep moving — not to push through pain or sickness.

On High-Nausea Days

On Low-Energy Days

On Your Best Days

The rule of thumb: honor where your body is today. A 10-minute walk on a hard day is worth more than skipping and breaking your habit entirely.

Before each week, decide in advance what your "Plan B" workout is if side effects show up.

Example: You plan a 30-minute run. Nausea hits. Your Plan B is a 15-minute walk. You still move, you still win, and you keep the habit alive.

These backup workouts often become a regular part of your routine over time.

This one is non-negotiable. A 2022 study found that rapid weight loss from GLP-1 medications can lead to muscle loss — not just fat loss. Muscle is what keeps your metabolism strong and your body functional as you age.

Experts at Massachusetts General Hospital note: "Muscle strength supports physical independence. It mitigates the risk of falling. And it is a key factor in maintaining bone density."

Aim for 2–3 resistance training sessions per week. They don't have to be long. Even 20 minutes with resistance bands or light weights is enough to protect your muscle while your body adjusts.

💊 Supplements Our Community Uses to Stay on Track

While your body adjusts to your dose, these are the supplements our community uses most often to manage common side effects:

It happens. You push too hard during a vulnerable window and feel terrible afterward. This doesn't mean exercise is bad for you — it means you need to reset.

Here's what to do:

Every setback gives you better data about your body. Over time, you'll get very good at knowing what it needs.

Most people focus on insulin when they think about weight loss. But there's another hormone that matters a lot: leptin — sometimes called the "fat-burning hormone" because it tells your brain when you've had enough to eat.

When leptin stops working the way it should (called leptin resistance), your body holds onto fat even when you're doing everything else right.

Research points to a few strategies that help reset leptin sensitivity:

If you're doing "everything right" and still not losing fat, leptin resistance may be part of the picture. It's worth discussing with your doctor.

The most important thing: don't stop moving completely. Even five minutes of gentle movement on your worst days keeps the habit alive — and that habit is what gets you to the finish line.