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    Fit Nation: Tips from Ironman champ

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Fit Nation: Tips from Ironman champ

Dr. Gupta talks to three-time Ironman champ Chris Lieto, and Fit Nation's Carlos Solis about training as a diabetic.

Fit Nation: Tips from Ironman champ

Dr. Gupta talks to three-time Ironman champ Chris Lieto, and Fit Nation's Carlos Solis about training as a diabetic.