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Study: Diet drinks associated with death, heart disease

4:36 PM ET Mon, 31 March 2014

A new study shows older women who drink 2 or more diet drinks per day are 30 percent more likely to suffer from a heart attack and 50 percent more likely to die from heart disease. Dr. Kevin Campbell, North Carolina Heart and Vascular; CNBC's Sara Eisen and Dominic Chu weigh in.