Very quick question: if I planned to run a marathon outside of the UK, will I have to check a bag to be able to take stuff like gels, powder mixes, etc.?
My plan had been to travel with only hand luggage, but not sure what the rules are re: the gels etc. I am guessing the powder would be okay, maybe decanted into some kind of airtight container. Might get a few raised eyebrows at security though!