How To Lower Your Body Fat Percentage Over 40
Mar 26, 2026Most people think that lots of cardio and massive calorie cutting is the best way to reduce their body fat. But that's not the most effective or sustainable strategy. As a coach with over 25 years of experience coaching people over 40, I'll show you how to do it right.
And the critical mistake people make that slows fat loss down.
What Body Fat Percentage Really Means
Your body fat percentage is the ratio of fat to everything else in your body. Muscle, bone, organs, and fluids. You don't just want to weigh less.
You're trying to improve your body composition.
If you lose fat but also lose muscle, your body fat percentage may not improve much at all. You want to maintain or even build muscle while losing fat to improve your body composition.
Why Muscle Matters More After 40
This becomes more important as you get older because once you hit around 40, you'll lose about 0.8 to 1% of your muscle mass each year if you're not doing anything to maintain it. That means even if you didn't put on fat, the loss of muscle mass could mean that your body fat percentage is going up gradually.
And that's actually what a lot of people see as they get older. We definitely don't want that.
Muscle is like the engine of your metabolism. It burns more energy than fat.
So with higher muscle mass, you burn off slightly more calories all throughout the day. It helps you feel strong and move easier rather than dragging yourself around.
The Most Important Factor for Building Muscle
So how do you build it? I'm going to show you the nutrition strategy you need for muscle building and fat loss a bit later. I've also put together a free nutrition guide for fat loss over 40, which you can get at the link in the description.
But by far, the most important thing for muscle is resistance training. If your body doesn't get the stimulus, you won't build muscle.
Beginner Strength Training and What Counts
Now, if someone's been completely sedentary for a long time, almost anything is a form of strength training. Bodyweight squats, even push-ups on your knees will do something for muscles that haven't been doing anything.
I often get asked if Pilates is considered resistance training because that seems to be popular. Again, like I said, if you're a beginner, then almost anything will stimulate your muscles.
But after a while, your muscles adapt and there isn't anywhere for you to go. I know you can add some resistance with the Pilates reformer machine, but that's still pretty limited.
You mostly develop endurance, posture, and core control, but it's not for strength, which happens in lower rep ranges.
Why You Need Progressive Resistance Training
It's similar for yoga or more basic calisthenics because after months and years, you need to push yourself into more challenging exercises to get a new stimulus. Because to keep stimulating your muscles to grow, you need to use progressive resistance training.
Let's talk about what progressive means because most people in the gym aren't doing it properly.
How Progressive Overload Actually Works
It's not just about adding weight all the time because once you've been training for many years, you won't be able to keep doing that or it will only be very incremental increases.
For a simple standing biceps curl, you can start by just bending the arm in front of you. Maybe you do three sets of 10 reps with 10 lb.
Once that's too easy, you move on to 12 lb, then 15 lb, then 20 lb, then 25 lb, and so on. The easiest progression is just to add more weight.
Maybe you've done that for a long enough time and you change your program to include a hammer curl instead. That's also a way of progressing.
How to Progress Your Squats and Lower Body Training
When you first start doing a particular exercise, like a squat, you might just do 20 bodyweight reps. That alone can provide enough stimulus if you're new.
After about 6 to 8 weeks, or up to 12 weeks for beginners, your muscles adapt. Then you need to progress.
You can turn this into a goblet squat by adding weight. Later, you can move to dumbbell squats or barbell squats.
You gradually increase the challenge so your muscles keep adapting.
How to Know When to Increase Weight
So how do you know when to move up in weight? Let's go back to the biceps curl example.
If you're aiming for 10 reps but can easily do 14 or 15, it's time to increase the weight. Then you aim for 10 reps again at that higher weight.
Most people don't push themselves hard enough. You should feel challenged and strained towards the end of your set.
That's what drives muscle growth.
Beginner vs Intermediate vs Advanced Training
Beginners in their first year of consistent weight training can build muscle with almost anything. This is where you see the fastest progress, often called newbie gains.
From one to three years, things get more challenging. After three to five years, it takes much more effort to stimulate muscle growth.
This depends on consistency and whether you're following a structured program.
Why Nutrition Is the Hardest Part of Fat Loss
Many people train for years without results because of poor nutrition. That's usually the hardest part.
I recently spoke to a woman at my gym who said, "The diet's the hard part." And I agree.
Most people enjoy exercise, but nutrition is what determines fat loss.
Do You Need a Calorie Deficit?
Beginners or people with more than 30 pounds to lose might see progress at maintenance. But most people need a slight calorie deficit.
This allows you to lose fat while building muscle, which is body recomposition.
How Often Should You Strength Train?
It's important to do progressive resistance training between two and five times per week. As you get older, recovery becomes more important.
Three to four sessions per week is often ideal. Your muscles grow during recovery, not during training.
How to Reduce Calories Without Overcomplicating Things
To lose fat, you need to reduce calories in a way that feels manageable. You don't need to track calories forever.
But having awareness of calorie intake is very helpful. Even tracking for a few weeks can teach you a lot.
High Calorie Foods That Add Up Quickly
People are often surprised by how calorie dense certain foods are. Nuts and avocado are healthy but very high in calories.
Cashews have about 160 calories in a quarter cup. Macadamia nuts have over 200 calories for just 10 to 12 nuts.
These foods are easy to overeat, so portion control matters.
Reducing Ultra Processed Foods for Fat Loss
Reducing ultra processed foods like pastries, chips, fries, cookies, and soda is an easy way to cut calories. That doesn't mean eliminating them completely.
Most people can't sustain that long term.
I still include small treats like chocolate or ice cream regularly. But I control portions.
How to Make Your Diet Sustainable
If you want to maintain fat loss, your diet has to be sustainable. Eating more low calorie density foods like vegetables and fruit helps you stay full.
Focus on water, coffee, and tea as your main beverages.
Plan your treats so you don't feel deprived.
Why Protein Is Critical for Fat Loss Over 40
Protein plays a key role in fat loss and muscle building. It helps maintain muscle and keeps you fuller.
It also stabilizes blood sugar and reduces cravings. Protein is more thermogenic than fats or carbs.
Your body burns more calories digesting it.
Focus on Lean Protein Sources
To lower body fat percentage, focus on lean protein sources. These are lower in calories and higher in protein.
If you pick up the Lean and Strong Protein Plan, you'll get recommendations, food lists, and a sample meal plan.
Next Step for Fat Loss Over 40
If you're serious about fat loss and want to reach 15 to 20% body fat, find out the five rules you need to follow in the NEXT VIDEO.