Dr Filip Larsen researches the cellular machinery behind endurance — mitochondrial function and the compounds that influence it — and brings a scientist's scepticism to the supplement aisle. His work on what's actually inside the 'green shots' pros are using cuts through marketing to mechanism: what's plausible, what's measured, and what's hype. For Roadman's audience he's a useful filter on recovery and adaptation claims, anchoring the conversation in physiology rather than the latest pro fad.
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Where Larsen lands on the questions people ask most.