Most of these industry respondents voiced concerns about possible unintended consequences of overly restrictive regulations that will decrease the ability of vaping products to compete with cigarettes, decreasing the likelihood of adults who smoke successfully switching to vaping products

On October 11, 2018, Lynn Hull, the lead pharmacologist with the FDAs Center for Tobacco Products, said the FDA is considering a proposal to force very low nicotine content in cigarettes: "FDAs Center for Tobacco Products has suggested that extended exposure to combusted cigarettes containing tobacco filler in the 0.2 - 0.7 mg nicotine per cigarette range (i.e., very low nicotine content) could be associated with reduced addiction potential, dependence levels, the number of cigarettes smoked per day, and increased quit rates among current smokers, without evidence of increased toxicant exposure, craving, withdrawal, or compensatory smoking." Altria has argued this isn't feasible, and thus in violation of The Family Smoking Prevention and Tobacco Control Act
On average, individuals gain about 25 kg, and it tends to level off after 612 months of being nicotine-free
doi:10 } : CS1 maint: multiple names: authors list (link) 1 2 "Women and the Tobacco Epidemic: Challenges for the 21st Century" (PDF)