Mr Z

General AI Chatbots vs a Real Coaching Method for Fat Loss

Francesco Zen, founder of ZTraining · Last updated 19 June 2026

Where the plans can look the same, and why they aren't

A general AI chatbot tends to pull from the most crawlable, SEO-optimised version of fitness content on the internet. Coaching isn't about having a different workout. It's about reading real signals and adjusting in response to them. A client who's clearly drained needs a different session intensity than the one written down. A generic model has no way to know that, because nobody told it, and it has no way to ask.

Question	Generic AI	Method-based coaching
Adjusts to how you feel that day	No, fixed plan	Yes, intensity reads fatigue and recovery signals
Asks why progress stalled	Suggests "push harder"
Built from	Most common online content
Knows your training history	Only what you typed once	Tracked and adjusted over time

The "push harder" trap

Here's the pattern that does real damage: someone hits a plateau, goes back to a general AI chatbot, and says they're losing weight but not progressing. The common response is more: more volume, more intensity, more frequency. It produces less.

"Simplicity is the hardest thing to master.

What this means in practice

A method encodes the judgment calls a general model can't infer from any single prompt: when to back off, when a plateau is recovery-related rather than effort-related, and what to ask before changing anything. Mr Z is built on that exact method, so the same judgment is available without needing to know which questions to ask in the first place.

He built Mr Z, an AI coach trained on his methodology to bring the same approach to a wider audience.