This post is pulled from a recent coaching call with my group coaching clients where we were talking about metabolism, muscle, and why so many women feel like their body suddenly stopped responding the way it used to.
During that call, I walked them through what metabolism actually is, why it isn’t broken or fixed, and how muscle plays a much bigger role in body transformation than most people realize.
The short clip below comes from that conversation, specifically from the moment where we were breaking down the idea that metabolism isn’t something you ruin or lose, it’s something you influence, and muscle is the biggest lever.
Here’s a bit more context around what we covered during that conversation.
Metabolism Is Not a Fixed Setting
For years, metabolism has been framed almost like a personality trait or something completely out of our control. You either have a “fast” one, a “slow” one, maybe you “broke it,” or maybe aging caught up to you and stalled it.
I used to believe all of that too. I genuinely thought metabolism was a fixed thing, like there was nothing I could do about it.
But metabolism isn’t a setting you’re born with and stuck with forever. It’s a process.
At its core, metabolism is how your body converts food into energy and decides what to do with the fuel you give it, whether that fuel gets used or stored. If you’re eating, your body is doing something with that energy. Nothing is broken.
So the most important question isn’t whether your metabolism is fast or slow. A better question is: what is influencing it right now?
Muscle Changes How Your Body Works, Not Just How it Looks
This is the part that’s almost shocking in how simple it is, and yet how overlooked it’s been.
What changes everything is muscle.
Muscle is the biggest lever most people underestimate when it comes to metabolism, aesthetics, performance, and overall health. It’s metabolically active tissue, meaning it requires energy just to exist.
If we compare it to fat, the difference is massive: Fat stores energy, while muscle demands it.
And that’s where things get interesting. The more muscle you have, the more energy your body needs on a daily basis, and the more efficiently it uses the food you eat. That single shift affects everything at once: fat loss, performance, confidence, resilience, and how stable your progress actually feels!
This is why muscle isn’t just about how you look, it goes beyond that. It changes how your body functions.
Aging Isn’t the Problem, Muscle Loss is
Aging itself isn’t the problem, though age does impact metabolism, it’s not in the way most people think.
What actually happens over time is that muscle mass naturally declines UNLESS you’re intentionally training to maintain or build it.
Less muscle means your body needs less energy, so the same habits that once “worked” quietly stop working.
That’s when it can feel like belly fat appeared out of nowhere, even though nothing obvious changed, but it didn’t come from nowhere. It built slowly, in the background, as muscle was lost and energy needs dropped.
This isn’t about blaming age or fighting your body, it’s simply about understanding what’s actually happening so you can respond strategically instead of defaulting to hacks or “quick fixes.”
When muscle loss is the issue, eating less isn’t the solution, the solution is to BUILD what actually drives things: muscle.
How Long Does it Take to Build Muscle
I want to say this takes four weeks, I really do. That would be amazing and it would make this whole process a lot more appealing. Unfortunately it doesn’t work that way.
Meaningful body transformation takes time. Not eight weeks, not a detox, not a reset and not a “quick fix.”
Real body transformation, or body recomposition, happens over months and years. It’s built by layering phases instead of rushing outcomes because muscle is earned slowly.
That’s why before-and-after culture warps expectations. We usually only see the reveal, not the years of work underneath it (either someone built muscle long before they leaned out, or they’re working with genetics and history you’re not seeing).
So how long does it take?
Longer than most people want. Again, I wish the answer was different. But that’s exactly why having a clear strategy, support, and accountability matters so much.
The process isn’t always pretty or aesthetic, it’s hard and it’s messy. And guessing your way through it is usually what keeps people stuck in the same loop.
Muscle is what changes everything, but only if you’re willing to play the long game.
