Ketones have hit the headlines in recent years. There’s been a lot of talk of Pro Cycling teams using them at the top races to boost performance and improve their results. Team Jumbo Visma, women’s hour record holder Vittoria Bussi, and others have all been very open in their use of the naturally occurring supplement. This gave Ollie the idea: how much quicker could ketones make us up Alpe Du Zwift?

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