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The Smarter Way to Diet and Work Out

Originally aired on 1/15/2016

NBC Nightly News anchor Lester Holt reveals what he has learned working out with fitness trainer Jenna Wolfe. Then, Wolfe shares how to tone your core effectively and the best post-workout snacks you need to try.

Guests: Dr. Ramani Durvasala , Valorie Burton , Jesse Shand , Jenna Wolfe