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Study: Diet sodas don't help with weight loss

NBC’s Dr. Nancy Snyderman reports on two studies making headlines: one by the University of Washington that reveals that where in the U.S. you live can affect how long you’ll live, and another that reports that artificially sweetened sodas and foods don’t help with weight loss.

NBC’s Dr. Nancy Snyderman reports on two studies making headlines: one by the University of Washington that reveals that where in the U.S. you live can affect how long you’ll live, and another that reports that artificially sweetened sodas and foods don’t help with weight loss.