Dec 31st, 2025

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Ep 463 - Can You Build Muscle on a Vegan Diet? (9 Myths)

[00:06]
It’s coming up to my four-year anniversary of being vegan. January 1st, 2022 is when I finally made the switch, so four years on January 1st, which is right around the corner.

[00:16]
What I want to do today is explain why I decided to become vegan, why it took me so long, and answer nine common myths that are still very prevalent — especially the big question: can you build muscle and a great physique on a vegan diet?

[00:43]
If you’ve followed my journey for a while, you’ll know I used to be a massive meat eater. For years, I was eating close to one kilo of meat per day — steak for breakfast, lunch, and dinner.

[01:17]
Every birthday was at a steakhouse. Every holiday involved finding the best steak restaurant in town. That was a huge part of my identity.

[01:32]
Around 2020–2021, I started questioning whether eating that much meat — or meat at all — was right for me, both from a health and ethical perspective.

[01:52]
That question sat with me for nearly two years.

[02:03]
In late 2021, on a trip to Cornwall with my wife, we were on a coastal hike, surrounded by nature, and I just said, “I think I’m ready to give up meat.”

[02:40]
The main thing holding me back was fear — fear of losing my fitness results.

[03:03]
Even though I’d helped plenty of vegan clients get incredible results, I convinced myself that I was different.

[03:49]
I dropped meat and fish first, kept eggs for a few months, then fully transitioned.

[04:12]
In early 2022, I got into the best shape of my life — leaner than I’d ever been, even compared to my meat-eating bodybuilding days.

[04:40]
That answered the first big question for me: yes, you absolutely can build muscle and get shredded on a vegan diet.

Myth 1: Vegan Diets Make You Weak

[05:23]
People think veganism makes you frail or weak.

[05:36]
Since going vegan, I’ve hit personal bests in the gym, run hundreds of miles, and competed in Muay Thai.

[05:58]
Elite athletes like Novak Djokovic and Lewis Hamilton are plant-based. Performance clearly isn’t the issue.

Myth 2: You Can’t Build Muscle Without Meat

[06:21]
As long as protein intake and training intensity are matched, research shows no difference in muscle or strength gains.

[06:46]
You only need about 1.6–2g of protein per kilo of bodyweight — which is very achievable on a vegan diet.

[06:55]
Foods like tofu, tempeh, seitan, legumes, edamame, and protein powders make this straightforward.

Myth 3: Soy Is Bad for Hormones

[08:05]
Soy does not damage hormones or lower testosterone.

[08:18]
In fact, it’s consistently linked with better cardiovascular, metabolic, bone, and overall health markers.

Myth 4: Vegans Live on Mock Meats

[09:01]
Mock meats should be treated like junk food — fine occasionally, but not a staple.

[09:27]
A whole-food, plant-based diet is where the real benefits come from.

Myth 5: Vegans Need Loads of Supplements

[09:44]
You really don’t.

[09:48]
A good multivitamin with B12, algae-based omega-3s, and creatine covers almost everything.

Myth 6: Veganism Is Inconvenient

[11:13]
I’ve travelled to remote places where veganism wasn’t understood at all — and still made it work.

[12:26]
With a bit of pre-planning, it’s completely manageable almost anywhere in the world.

Myth 7: Veganism Is Just a Diet

[14:22]
Veganism is more than food — it’s a way of thinking and living.

[15:04]
For me, the real shift happened when I realised fear of losing my gains was just selfishness holding me back.

Myth 8: Vegans Are Preachy

[16:26]
Most vegans aren’t trying to be annoying — they’re just passionate.

[16:55]
It’s one of the few ways people feel they can contribute to something bigger than themselves.

Myth 9: Vegans Expect Everyone to Convert Overnight

[17:47]
Most vegans would be happy if people simply reduced meat intake or tried something like Veganuary.

[18:30]
That’s what this is really about — awareness, not perfection.

Final Thoughts

[18:54]
If you’re curious, try it for a month. Veganuary is a great starting point.

[19:01]
And if you want to see what’s possible, check out the Can You Get Shredded on a Vegan Diet documentary on the RNT Fitness YouTube channel.

Next Steps

  1. Book a 1-1 strategy session with my team to find out more:
    👉 https://www.rntfitness.com/applynow

  2. Find out if you’re ready for a transformation:
    👉 https://www.rntfitness.com/transform

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