Legs turning into concrete. Head going foggy. Stomach shutting down. You are somewhere in the back half of a long ultra. Sounds dramatic, feels worse, and it's rarely your training. It's your fuelling. Ultra distances demand something different from your body than a marathon does. Whatever gets you through 3 to 4 hours starts falling apart somewhere past hour 6. Most fuelling advice hands you generic numbers and stops there. This one explains why they exist, how I apply them

Most runners think about their gut in terms of what goes wrong on race day. Cramping, urgency, the mid-race sprint to a portaloo nobody wants to talk about. What's actually driving a lot of that isn't just what you ate that morning. It's the trillions of microbes living in your gut, and what your diet, training and wider gut environment is doing to them. So what does your microbiome have to do with running? Your gut bacteria aren't just sitting there doing nothing while you t

An opinion from a Clinical Nutritionist Ok, so there is a major hype around the carnivore diet, and initially, you may see symptom...