Few words are used more often in conversations about health than metabolism, yet few are as widely misunderstood.
It’s common to hear people describe themselves as having a “fast” or “slow” metabolism, particularly when they’re finding it difficult to lose weight. Many assume that if the number on the scales isn’t moving, their metabolism must somehow be working against them.
The reality is much simpler. Your metabolism isn’t something that switches on and off, nor is it dramatically changed by one food, supplement or workout. It’s the collective name for the thousands of chemical reactions taking place inside your body every second of every day, converting food into energy, repairing tissues, supporting your immune system and keeping every organ functioning as it should.
Rather than asking whether your metabolism is good or bad, it’s far more useful to understand what influences it.
Your body is using energy all the time
Even when you’re sitting quietly reading this article, your body is remarkably busy.
Your heart is beating, your lungs are breathing, your brain is processing information and your cells are continually repairing and renewing themselves. Together, these processes account for the largest proportion of the calories most of us burn each day. This is known as your basal metabolic rate.
The energy you use through movement – whether that’s structured exercise, walking the dog or simply getting on with everyday life – is added on top of this. That’s why metabolism isn’t just about weight loss; it’s the foundation that keeps your body functioning every day.
Does your metabolism really slow down with age?
Many people believe metabolism slows dramatically once we reach our thirties. However, recent research suggests the picture is more nuanced. A large international study published in Science found that, after allowing for body size and composition, adult metabolism remains remarkably stable between the ages of around 20 and 60.
So why does maintaining a healthy weight often become more difficult?
The answer is rarely metabolism alone. As we get older, we often move less, spend more time sitting and gradually lose muscle unless we actively work to maintain it. These changes influence how much energy our bodies use and how we feel, even if our underlying metabolism has changed very little.
Muscle matters more than metabolism
One of the most important influences on long-term metabolic health is muscle.
Muscle is metabolically active tissue, requiring energy to maintain. While its effect on calorie burning is often exaggerated online, maintaining muscle supports healthy movement, helps regulate blood sugar, protects our joints and makes it easier to stay active throughout life.
Rather than looking for ways to speed up our metabolism, perhaps we should spend more time protecting the muscle that supports it.
What about metabolism-boosting foods?
The promise is certainly appealing. Drink this. Take that. Eat a particular food and your body will suddenly become a more efficient calorie-burning machine.
Unfortunately, the evidence doesn’t support most of these claims.
Some substances, including caffeine, can produce a small, temporary increase in energy expenditure, but no food or supplement will dramatically change the way your metabolism works.
The habits that genuinely make a difference are far less dramatic: regular strength training, daily movement, adequate protein, quality sleep and maintaining muscle over time.
The Volte approach
At Volte, we don’t believe in hacks or shortcuts. We believe in helping people build stronger, healthier bodies.
Whole-body EMS provides an efficient way to challenge your muscles, but lasting progress comes from combining that stimulus with regular movement, good nutrition, quality sleep and consistency over time.
We’re not trying to help people chase a faster metabolism. We’re helping them build a body that’s stronger, more resilient and better equipped to support them for years to come.
