DAVID DUNNE

WHO IS DAVID DUNNE?

David Dunne is the performance nutritionist behind Hexis, the personalised sports-nutrition platform used by World Tour cyclists, Premier League clubs, NBA franchises, Super League sides, and Ryder Cup Team Europe. With a PhD in behaviour change, design thinking, and technology innovation in sports nutrition, and IOC alumnus credentials, he sits at the intersection of academic research and practical application. His work matters because he turned periodised nutrition — matching carb intake to training load day by day — from a coaching idea into a measurable system used by hundreds of elite athletes and tens of thousands of amateurs.

KEY IDEAS

The major positions Dunne is known for in cycling and endurance sport.

• →Carbohydrate periodisation matches daily intake to training load — it is not low-carb, it is right-carb.
• →Energy availability is the unsung lever for body-composition change and long-term training durability.
• →Fuelling around training matters more than total daily macro targets — the timing changes the adaptation.
• →Behaviour change in nutrition is a design problem — make the right thing easy and the wrong thing inconvenient.
• →Personalised plans outperform generic ones at every level, but only if they are actually used — adherence is the limiting factor.