"I was sceptical at first, but so glad I gave these a try. My running endurance has improved so much since taking these, I have noticed such a difference especially in my long runs. These now have a permanent place in my supplement stack!"
WATCH HERE Marathon runner Ben Felton breaks down exactly how to fuel for a marathon - including what to eat before the race, how to use gels and electrolytes during the run, and how to recover properly after you finish.
