Re-thinking Protein In The Age of Mis-Information
Protein isn’t just about muscle. It’s made up of smaller building blocks called amino acids that are responsible for hundreds of different jobs in the body.
Kobbii Nyarko
10/27/20253 min read
Back in 2001, a typical gym membership would’ve cost you around £46 a month. Big-name gyms like Fitness First and Virgin Active were booming, and so was the influence of fitness magazines and “body-perfect” advertising.
Up until this time, people usually went to the gym to build muscle or increase their strength. Leisure Centre's and Private Health Clubs with gyms also offered fitness classes, swimming pools, and spa's, but even then the 'gym' element was all about muscle.
It was around this time that the idea “protein = muscle” really took hold.
💪 The Rise of the Protein Craze
As bodybuilding went mainstream, protein shakes, weight-gain formulas, and creatine started moving off the shelves of hardcore gyms and into high-street health stores.
By 2008, the fitness world had a shake-up: budget gyms like The Gym Group, Pure Gym, and Xercise4Less made working out more affordable, with memberships starting from just £8.99. Fitness classes merged into the gym atmosphere where the focus went from providing experience to signing up as many people up as possible.
But what the majority of people seem to miss - as the gyms got cheaper, so did synthetic protein. What was once “bodybuilder fuel” became part of everyday life. Soon, everyone was drinking shakes and eating bars in the name of “health” and “weight management.”
Fast forward to today — we’ve got protein yoghurts, protein chocolate bars, protein beers, and even protein ice cream. High-protein diets like Keto and Carnivore have taken over social media.
But through all this marketing and hype, one major misunderstanding remains…
🧬 What Is Protein, Really?
Protein isn’t just about muscle. It’s made up of smaller building blocks called amino acids that are responsible for hundreds of different jobs in the body.
Modern Science divides amino acids into two types:
Non-essential amino acids – your body makes these naturally.
(Note how they have been labelled as ‘non-essential’ because our body produces them naturally - how does this make them 'non-essential'?)
Essential amino acids – sourced from food, cannot be produced naturally.
🌿 Non-Essential Amino Acids: Your Body’s Built-in Chemistry Set
Your body naturally produces 11 non-essential amino acids — and they’re vital to your daily function, not just muscle repair.
Here are the 4 most important amino acids:
Alanine: Converts glucose into energy.
Asparagine: Helps your nervous system and builds proteins for energy use.
Aspartic acid: Removes toxins and helps produce energy through the Krebs cycle.
Glutamic acid: A major neurotransmitter that powers communication in your brain.
These amino acids keep your brain firing, remove waste, and create energy — yet they’re often overlooked in modern science which is more inclined to muscle-focused marketing.
Then there are 7 more “non-essential” amino acids that your body produces but can run low if someone is stressed, ill, or growing in size:
Arginine: Supports blood flow, wound healing, and immune function.
Cysteine: A detox hero that helps the liver.
*Glutamine: Aids muscle recovery and immune health.
*Glycine: Boosts collagen and sleep for recovery.
*Proline: Repairs tissue and joints.
Serine: Builds brain cell membranes and supports metabolism.
Tyrosine: Helps produce hormones like dopamine, adrenaline, and thyroid hormones.
All of these can be found in whole foods such as beans, leafy greens, mushrooms, and seeds.
As you look into the functions of each amino acid, you will notice that only *3 of the 11 non-essential amino acids directly support muscle growth — meaning that the vast majority of your body’s protein activity is happening elsewhere.
🍳 Essential Amino Acids: What You Get from Food
There are 9 essential amino acids that your body cannot make on its own. They help with things like blood cell creation, nerve protection, memory, mood regulation, and collagen formation.
Out of those nine, only three directly build and repair muscle — the famous BCAAs (Branched Chain Amino Acids):
Isoleucine: Supports endurance and recovery.
Leucine: Helps regulate growth hormones and build muscle.
Valine: Supports muscle repair and energy.
So when it comes to muscle growth, just 15–30% of amino acids are responsible, leaving a huge 70–85% doing other essential work — for your brain, hormones, nervous system, and energy metabolism.
🧠 The Bigger Picture
Modern science and marketing has taken this small part of protein’s purpose — muscle growth — and made it the whole story. But the truth is, there is much more to protein than muscle building.
By over-eating meat, the amino acid structures in animal flesh can infiltrate our nervous system.
So what happens to the other functions — brain and nerve communication, hormone production, and energy creation — when the balance is tipped?
Is it possible that too much focus on “muscle protein” could actually interfere with these other delicate systems?
Summary: Protein Is More Than Muscle
Protein is essential — but not for the reason most people think.
Only about 30% of amino acids are used to build and maintain muscle. The rest power your mind, nerves, hormones, energy, and even detox systems.