Ben Greenfield answers your questions on: Drinking carbonated water, will it negatively affect performance?
How should fueling change for freezing-temp bike rides?
Not eating before a marathon unless it's at least 3 hrs prior to a race?
Caffeine intake: What is the proper timing, formulation, dose, duration for endurance performance?
Maltodextrin and glucose in fuel?
And energy drinks: how bad are they, really?

Click here to download audio.

Podcast: Play in new window | Download