I also dabbled with beetroot juice but a pre-marathon toilet incident put me off. I completely ignored the age-old advice of not trying anything new on race day, and had some for brekky just before the 2015 Berlin Marathon. Stomach was turning over in the toilet queue before the race but had a good clear-out, didn't have any issues during the race, and ran my marathon pb.
The science seemed pretty convincing at the time but the incident (and taste) put me off a bit. So, give it a go but definitely make sure you're in a routine before race day!
I also dabbled with beetroot juice but a pre-marathon toilet incident put me off. I completely ignored the age-old advice of not trying anything new on race day, and had some for brekky just before the 2015 Berlin Marathon. Stomach was turning over in the toilet queue before the race but had a good clear-out, didn't have any issues during the race, and ran my marathon pb.
The science seemed pretty convincing at the time but the incident (and taste) put me off a bit. So, give it a go but definitely make sure you're in a routine before race day!