10/09/2026
One of my clients is preparing to take on the Great North Run - and at this stage, the work isn’t just about training.
It’s about making sure the body has the fuel to express the fitness we’ve built.
One of the biggest mistakes runners make is confusing carb loading with calorie loading. They simply eat more without considering where those extra calories are coming from.
But the purpose of carb loading is specific: to increase the carbohydrate stored as glycogen in the muscles and liver.
During a half marathon, your body uses both fat and carbohydrate. But as the intensity increases, carbohydrate becomes increasingly important for supplying energy quickly enough to maintain your pace.
If glycogen availability becomes limited, the pace that felt controlled early in the race can become much harder to sustain.
That’s why we’re not simply adding more food to my client’s diet before the Great North Run. We’re deliberately increasing carbohydrates while managing everything around them.
That includes choosing more lower-fibre options—such as white rice, white pasta, bread and cereals—so carbohydrate intake can rise without creating excessive food volume or unnecessary digestive discomfort.
It isn’t an excuse for an enormous takeaway the night before.
It’s a planned nutrition strategy using familiar foods we know the athlete tolerates.
Months of training have built the engine.
The final job is making sure it reaches the start line properly fuelled.
Good luck to everyone taking on the Great North Run.
What does your pre-race fuelling plan look like?