Why muscle matters on your weight-loss journey

You’re tracking, you’re building new habits, and you’re seeing the number on the scale move in the right direction. That progress is something to be proud of. But what if we told you that not all weight loss is created equal?

Losing fat is obviously the goal. But the faster you lose weight (like with the help of a GLP-1), the higher the risk of losing calorie-burning muscle right alongside the fat. And that can actually sabotage your long-term success.

During weight loss, there's a high risk of losing lean muscle mass - particularly during times of more rapid weight loss, like when you’re on a GLP-1. Muscle isn’t just about looking toned - it protects your bones, steadies your energy, and keeps you healthy as you age. Plus, muscle is a metabolically active tissue, meaning it burns calories even when you’re at rest. Losing this muscle is like turning down the thermostat on your body's calorie-burning furnace.

So how can you make sure you’re losing more fat than muscle? First, make strength training your go-to move. Then, track your progress with our built-in AI Body Scanner to monitor your muscle mass over time.

Strength training (also known as resistance training) uses weights like dumbbells, kettlebells, machines, bands, or your bodyweight to build muscles. It works by pushing your muscles to do more than they’re used to, right up to their limit. And when you consistently tell your body that you need more strength for the things you do, it responds by signaling the repair and growth that leads to building muscle.

And meeting that goal is easier than you think. The goal isn’t perfection, it’s consistency that leads to progress. Here are three simple ways to start building the habits that will power your results:

• Start right where you are - no gym needed. Bodyweight exercises like squats, push-ups, and lunges are incredibly effective for building a strong foundation. Plus, they’re free and easily modifiable, meaning you can find a version that works for your current fitness level and progress to harder variations as you get stronger.

• Find your first workout in the app. Your Weight Watchers app is full of resources. Look for guided bodyweight and resistance exercises from WW Coaches that you can do right at home, on your own schedule.

• Focus on the feeling, not just the reps. Pay attention to all the non-scale victories. Building muscle and getting stronger often means more energy, better sleep, and easier everyday activities, such as lifting your children or grandchildren, stowing luggage in the overhead bin, or carrying all your groceries in a single trip.

And no, lifting weights won’t make you “bulky.” In fact, as you lose fat, strength training will help create a leaner, more toned look. How? A pound of muscle is denser than a pound of fat, meaning it takes up less space. So as you build muscle, your clothes might actually fit better even if the number on the scale stays the same (plus you’ll have more energy and feel stronger too).

In the past, maybe you saw exercise as a way to get smaller - now it’s time to get stronger. It’s not just about changing the number on the scale; it's about changing your body composition to lock in your progress for good.

We’re talking about shifting your focus from what you're losing to what you're building. And it’s never too late to start.

The information provided in this article is intended for general informational purposes only and does not constitute individualised medical advice, diagnosis or treatment. It should not be regarded as a substitute for professional medical, diagnosis, or treatment from a qualified healthcare provider. Always seek the advice of your doctor or other qualified health provider with any questions you may have regarding your health, a medical condition or treatment options