At 62, David Green did something most endurance athletes wouldn’t.

He stopped taking supplements.

Not as a statement—but as an experiment.

What followed wasn’t a drop in performance. It was the opposite.

More clarity. Better training. And eventually, the fitness to run across Europe.

In this conversation, David shares what changed when he stopped outsourcing decisions and started paying closer attention to his body.

We talk about simplicity. About trust. About what happens when you remove noise instead of adding more.

This isn’t anti-supplement.

It’s about agency—knowing what you’re doing, why you’re doing it, and when it might be time to step back and listen.

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Topics: longevity, fitness over 40, endurance training, aging athletes, recovery, injury prevention