If you’ve ever said “I just have a slow metabolism” or “They’re lucky, they’ve got a fast metabolism”, you’re not alone.
But here’s the truth: most people misunderstand what metabolism actually is, and that misunderstanding is one of the biggest reasons fat loss, muscle gain, and energy goals stall.
Let’s clear it up.
What Metabolism Actually Means
Your metabolism is not how hard you train.
It’s not how many steps you do.
And it’s not how “motivated” you feel.
Your metabolism is the total amount of energy your body uses to stay alive and function.
This includes:
• Breathing
• Digesting food
• Circulating blood
• Regulating temperature
• Brain activity
• Cellular repair
• Hormone production
The biggest part of this is your Resting Metabolic Rate (RMR).
What Is Resting Metabolic Rate (RMR)?
Your Resting Metabolic Rate is the number of calories your body burns every day just to exist.
No workouts.
No steps.
No effort.
Just lying there.
For most people, RMR makes up 60–75% of their total daily energy burn.
Which means this:
👉 Your workouts influence a much smaller part of your energy use than your baseline metabolism.
That’s why RMR matters more than your workouts.
Why “Slow vs Fast Metabolism” Is Misleading
People often describe metabolism as “slow” or “fast”, but that’s an oversimplification.
What they usually mean is:
• Their RMR is lower than expected
• Their body adapts quickly to dieting
• They burn fewer calories than they think
• Their energy availability is low
A “slow metabolism” isn’t a broken one.
It’s usually an adapted one.
And adaptation happens when:
• You diet aggressively
• You under-eat for long periods
• You overdo cardio
• You under-recover
• You lose muscle mass
Your body isn’t failing, it’s protecting you.
Why RMR Matters More Than Your Workouts
Most people approach fat loss like this:
➡️ “I’ll train harder.”
➡️ “I’ll burn more calories.”
➡️ “I’ll eat less.”
But if your RMR is low, your body will fight you.
It does this by:
• Reducing energy output
• Increasing hunger hormones
• Lowering body temperature
• Reducing movement
• Making you feel exhausted
So even if you’re “doing everything right”, progress can stall.
This is why two people can follow the same plan and get wildly different results.
Where Training Fits In
Training does influence metabolism, but not in the way most people think.
What DOESN’T raise metabolism long-term:
• Endless cardio
• Starvation-style dieting
• Daily HIIT
• Overtraining
These can actually lower your RMR over time.
What DOES improve metabolism long-term:
1. Building Lean Muscle
Muscle tissue requires more energy to maintain than fat.
More muscle = higher baseline energy use.
2. Strength Training
Resistance training sends a signal to your body that muscle is essential.
This helps protect RMR during fat loss.
3. Proper Fueling
Under-eating long-term tells your body to conserve energy.
Eating appropriately tells it that survival is not under threat.
4. Recovery
Sleep, stress management, and rest days all affect metabolic health.
Why Guessing Doesn’t Work
Most people base their calorie intake on:
• Online calculators
• Fitness trackers
• Generic formulas
These can be off by 20–40%.
That’s the difference between progress and frustration.
This Is Why We Measure
At our clinic, we don’t guess.
We measure your actual Resting Metabolic Rate using proper metabolic testing.
This tells us:
• How many calories you truly burn at rest
• Whether your metabolism is adapted
• How aggressive your plan should be
• Why previous attempts may have failed
From there, training becomes strategic, not a guessing game.
🔁 Metabolic Challenge
You’ll receive:
• 2 x Resting Metabolic Rate tests
• A baseline test → then a 6–8 week retest
• Objective data showing how your body has responded
• Clear insight into whether your training and nutrition approach is working
You can either:
➡️ Take your results and do your own thing
➡️ Or use Alen’s support during the 6–8 weeks, then retest on an agreed date
💷 £90 total
This isn’t about guessing.
It’s about understanding your body and making informed decisions.
