of marathons and have suffered with cramp on the last two (due to a lack of salt). It might be worth having something savoury to hand for later in the race - I'm always sick of sugary things after 20-odd miles. – SoVeryTiredDon’t try anything new on race day
and all that entails - muscle cramp, disorientation... – 99%ChimpUnderstand what your body needsYou need to know how fast you lose fluid, which will vary according to conditions. Weigh yourself (naked) before a run, then straight after - the loss of weight
