average increased weight gain 10 years after quitting smoking is about 5 kg when compared with continuing smoking, with greater weight gain seen among heavier smokers and those with higher BMI before quitting (1)
frequent unsuccessful attempts to quit smoking could lead to weight cycling and repeated and increased weight regain (1)
especially prone to post-cessation weight gain are smokers of low socioeconomic status, women, and smokers who eat when under emotional stress or who eat for comfort
smoking cessation, weight gain and risk of cardiovascular disease
Wang et al undertook a study investigating whether weight gain following smoking cessation increased cardiovascular risk
study (n= 69,910 grouped into six groups by smoking status in the first and 5-year surveys) found postcessation weight gain did not attenuate the protective association between smoking cessation and risk of CVD and should not become a concern for those attempting abstinence
Reference:
Kos K. Smoking cessation, weight gain, and cardiovascular risk. Lancet Diabetes Endocrinol. 2020 Feb;8(2):93-95
Wang X, Dong JY, Cui R, Muraki I, Shirai K, Yamagishi K, Kokubo Y, Saito I, Yatsuya H, Sawada N, Iso H, Tsugane S; Japan Public Health Center-based Prospective Study Group. Smoking cessation, weight gain and risk of cardiovascular disease. Heart. 2021 Jun 2:heartjnl-2021-318972
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