A legend in ultrarunning coaching in the US, author, podcaster and running coach Jason Koop joins us for our special Episode 50. We discuss the evolution of nutrition in trail and ultrarunning, and what’s transferred over from cycling and triathlon. Jason also gives us a sneak peak of what the elite guys are doing in terms of their approach to race day fuelling and hydration, what we can or can't learn from that, plus his recent work with Mina Guli and her Run Blue project. Plus plenty of great practical tips along the way.