cigarette smoking rates by state Changes in prevalence among U.S. adults and region: Estimates from the Tobacco Use Supplement to the Current Population Survey, 1992-2007 | BMC Public Health Who still smokes in America?

They also provide COAs (Certificate of Authenticity) that you can examine prior to purchasing

Bree Tomlinson and Amyah Davis are senior high school students from Kenwood High School in Essex County, Maryland

It has been decided that e-cigarettes including all forms of Electronic Nicotine Delivery System (ENDS), Heat Not Burn Products, e-Hookah and the like devices, by whatever name called and whatever shape, size or form it may have, but does not include any product licensed under the Drugs and Cosmetics Act 1940 is prohibited from production, manufacture, import, export, transport, sale, distribution, storage and advertisement in the premises of aerodromes/aircraft and from taking out of India to a place outside India or bringing into India from a place outside India including use of e-cigs has been prohibited, said a BCAS order, which was issued on January 10, 2020

So technically smoking contributes to consuming less food, but in general smoking has no effect on the weight loss process