GI issues

GI issues are still the main reason for DNFs in ultra races. And many of these DNFs are avoidable…

But it’s important to start practicing your nutrition strategy months before your main race. It takes time for your legs and lungs to grow stronger. But it’s just the same for your stomach.

So, make use of the many hours that you are training!

Experiment, count calories, see what works for you, and how it changes after a few hours of running. The food that worked well the first 3 hours suddenly no longer does 4 hours in.

We’ll be sharing many specific nutrition tips and tricks to avoid GI issues in the future. But for now, keep in mind the most important one and start experimenting!
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PS Pizza & hamburgers are usually not the best nutrition solution for your ultra trail. But Karel has put in many many hours of practice ;)!