Sanjay Gupta weighs in on study claiming 42% of Americans to be obese by 2030, says numbers could have been higher

exp point gupta obesity report 2030_00001515
exp point gupta obesity report 2030_00001515

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Sanjay Gupta weighs in on obesity study 01:51

CNN's Dr. Sanjay Gupta on interpreting a new study that claims 42% of Americans will be obese by 2030.