ericlambi wrote:
robgray wrote:
Interesting - I am CYP1A2 type CC and also an avid fan of caffeine - maybe I should cut it out and see how things go!Just got my 23andme data back, I am also CC. On one level, not surprising in that I've never actually found that much benefit in my training from caffeine, I just always have taken it because it's supposed to help! On a different level, I suffer no ill consequences from caffeine consumption that I'm aware. I guess I'll start cutting back and see what happens.
Edit: I did just go back and look at the blurb from the pubmed article that was linked in the OP. They had 100 cyclists, which isn't a small number, but the number of cyclists that have the CC variant, which is relatively uncommon, and took 4mg caffeine must have been quite small and the performance result seen for CC could have easily been caused by one bombed performance.
ok - yes the small sample of CC makes sense. What confuses me a bit is that I definitely (without a doubt) see a performance increase from caffeine. It would be interesting to know what length of time they left between ingestion of the caffeine and the cycling test. For me to see a benefit, I'd need to take it about 90 mins before the test.
____________________________________
Are you ready to do an Ultraman? | How I calculate Ironman race fueling | Strength Training for Athletes |