Mark Sisson: The Carb-Loading Myth, How to Fuel Athletics with Fat, & Advanced Heart Rate Training
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Today we’re here with bestselling author of The Primal Blueprint and head honcho at Mark’s Daily Apple, Mr. Mark Sisson.

You’re about to learn a revolutionary way of training so that you can run, swim and bike faster with less effort. What’s the secret? Programming your body to use fat instead of carbs as the primary fuel for your training.