How to fuel during the London Marathon
Fuelling the body is a bit like putting fuel in your car. If you add the wrong type of fuel, or worse, no fuel at all, then your performance will be severely affected. A bit like your car, during the run your ‘fuel tank’ will be draining away. We only have limited energy stores within the body (enough for roughly 90 minutes to 2 hours of exercise) so we need to make sure we keep it topped up to help complete the event itself.