Dr Mark Tallon Phd talks specifically about Ironman nutrition, how much to take, what to take and when to take. This is a must listen if you're struggling to perfect your race nutrition plan.

Mark also designed the flowcell which is a bike mounted food storage system that actually allows you to carry that all important nutrition required for long races. Check it out here and if you're an Xhale user you'll get a discount.

http://flowcell.co.uk