Sports Nutrition: A Coke or a Gel on Those Long, Hot Days?

July 12, 2012
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Ben Greenfield joins to answer your questions on the difference between Vitamin D2 and Vitamin D3, and which should we take;  are there positives or negatives to having a gel vs. a Coke during a long training ride; recipe ideas for coconut milk, turmeric and cayenne pepper; the best calories for a long run (or do you really even need anything!); and why cutting back on caffeine is a good idea.

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