Quitting Smoking Does Make You Fat, Study Confirms

  • By Kim Min-jung

    May 12, 2022 11:25

    The popular belief that quitting smoking leads to weight gain turns out to be true, with participants in one study gaining on average 3 kg.

    Kim Dae-hawn of Donga University studied the body mass index and weight changes of 8,820 adults from 2013 to 2016.

    The findings published Wednesday show that the price of cigarettes surged from W2,500 to W4,500 a pack during that period and the smoking rate during that period fell from 20 percent to 17.7 percent (US$1=W1,274).

    Those who quit smoking saw their weight increase 3.09 kg on average, while their BMI went up 1.30.

    There have been numerous reports showing the effects of nicotine on boosting metabolism, suppressing appetites and increasing energy consumption by stimulating the sympathetic nerve, but this is the first time the link between quitting smoking and weight gain has been established in Korea.

    Kim said, "Many studies in the U.S. and elsewhere tried to prove the relationship between smoking and obesity, but the conclusion is still under debate." Kim added that more research is needed in Korea as well. 

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