New research shows people on Ozempic and similar drugs walk 560 fewer steps daily despite losing weight.
People taking GLP-1 drugs like Ozempic dropped from 5,047 to 4,487 daily steps after starting treatment, according to Fitbit data from 753 adults. They also exercised 6 fewer minutes per day. This matters because these medications strip away muscle along with fat—up to half the weight lost can be lean tissue. Less movement while losing muscle is a recipe for getting weaker, not healthier.
The assumption that losing weight automatically makes you more active is wrong. These drugs work partly by making you feel less motivated to move, which researchers measured with actual activity trackers, not self-reported gym visits. Men and people with joint pain showed the biggest drops. The weight comes off, but you're becoming more sedentary in the process.
This creates a hidden problem: you might hit your goal weight but end up with less muscle and worse fitness than when you started. Muscle mass predicts how well you'll age—it affects your metabolism, bone density, and ability to recover from illness. The drugs work for weight loss, but only if you actively fight their tendency to make you move less.
What You Can Actually Do Today
- Set a daily step goal 500 steps higher than your current average and track it with your phone or watch
- Add two 20-minute strength training sessions per week focusing on major muscle groups
- Schedule activity immediately after meals when GLP-1 drugs have less appetite-suppressing effect
Discuss activity changes with your prescribing doctor, especially if you have heart conditions or joint problems.
