In this clip, legendary bodybuilder Mike Mentzer explains why fast running and intense cardio may not be the best for fat loss — and why slow, steady-state cardio is far more effective for tapping into fat stores.

He breaks down the science behind how the body uses fuel — and why “running slow burns fat, running fast burns sugar.”

Whether you’re a bodybuilder, hard gainer, or someone tired of pointless cardio — this is advice worth gold. 🧠💪

🔗 Want more real training wisdom? Check out the link in the description for my HIT eBook!

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