I am training for an Event in the UK called Tough Guy. It involves a 13 mile run accross country with an assault course over the last 3 ish miles. I have been doing small 1-2 mile runs twice a week for the last 5 weeks and this week I did a 4.5 mile run at a good pace, had to stop and walk for 200m then could run again. I am cutting out all caffine and alcohol along with bad fats. Trying to have a nice healthy balanced diet.
What I would like to know is are there any supplements that I could take to help with my progress.
I am 27, 5,10, 12st 7 lbs, low 18% body fat.