Mr Z
Is an AI Coach Useful for Advanced Lifters?
Francesco Zen, founder of ZTraining · Last updated 19 June 2026
Where the line actually sits
The honest answer for that specific tier
The honest answer for that specific tier For someone genuinely at that level, Mr Z isn't the right tool. It's built for sustainability and long-term balance, and it's advanced enough to deliver impressive body recomposition results. But that tier of athlete needs someone willing to push the envelope further than an AI, or even a sustainability-focused method, would take them. That's work I'd take on personally, not hand to an AI.
Why this distinction matters
Most people who consider themselves "advanced" aren't actually at that elite tier, and for them, Mr Z genuinely works well. The honesty here is about the narrow top end, not a blanket limitation.
Related: What Mr Z can and can't do · The real downsides of AI fitness coaching
He built Mr Z, an AI coach trained on his methodology to bring the same approach to a wider audience.