Up to 80% Killer: What’s Really in Your Sports Nutrition?
Our investigation compared leading sports nutrition products to the Joe Wicks Killer Protein Bar and found that up to 80% of their ingredients were also found in the Killer Bar
Think that sounds extreme?
So did we.
We took the full ingredient list from the Killer Protein Bar - a product deliberately designed by Joe Wicks to expose the dangers of ultra-processed food (UPF) - and cross-checked it against everyday sports nutrition products used by runners, cyclists, triathletes and other endurance athletes.
What we found was uncomfortable.
Because some of the most widely used gels and drinks on the market share more than half (and in one case 80%) of their ingredients with ingredients found in a bar specifically created to be as unhealthy as legally possible.
And there’s a good chance they’re in your sports bag right now.
The comparison
What follows is a direct, ingredient-by-ingredient cross-check between the Killer Protein Bar and popular sports nutrition products.
Key Findings: Killer Bar Ingredients Are Everywhere in Sports Nutrition
🧪 PH PF30: 50-80% of ingredients used are also found in the Killer Bar
⚠️ SIS GO Gel & Beta Fuel Gel: 64-67% of ingredients used are also in the Killer Bar
🧯 Maurten Gel 100 & Solid 160: 45-50% of ingredients used are also in the Killer Bar
How safe is your sports nutrition?
The Killer Bar was designed to expose the risks of ultra-processed foods and their ubiquity on UK supermarket shelves.
Every ingredient in it is legal in the UK. Yet Wicks himself described it as “the most dangerous health bar in Britain”, packing it with ingredients linked to serious long-term health risks when consumed regularly.
But here’s the part that should really make you pause:
Ingredients used to make that deliberately dangerous bar may also be sitting in your cupboard, your kit drawer, or your race vest
Behind that slick branding and your favourite pro athlete sponsorships, the ingredient lists could tell a very different story.
So it’s worth asking:
- How many Killer Bar ingredients are you consuming daily?
- Is sports nutrition made this way really safe to use in any volume?
- Could products supposedly designed for performance be quietly impacting long-term health?
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