How DANGEROUS is SUGAR on race day? | A Sugary Sacrifice | Run The Lighthouse 2026
I have a belief, a belief that sugar and sweets are not only unnecessary, but actually counterproductive for endurance performance. The constant spike and crash cycle, the gut distress, the energy rollercoaster—it all works against what your body actually needs over long distances.
Yet, Ultra-running nutrition is full of sugar… so I tested what happens when you go all in and experiment with the effects of pure sugar on race performance. So a few days before the 2026 **Run The Lighthouse Ultra Race**, I went on a full-on candy hunt, loaded up on sweets, and then tried to run hard trail on a sugar flood to see if it helps, hurts, or completely blows up. Consider this a slightly unhinged race film and a real-world experiment in fuelling.
If you’ve ever wondered whether sugar is your best friend or your downfall on race day, this video will hopefully help your formulate the right race day nutrition strategy.
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