There are several mechanisms which can help speed you along a bit faster, and improving your diet and exercise will help take the edge off the withdrawal, in addition to helping clear nicotine from the body
No one is regulating this stuff or governing the industry
Varenicline works by binding to nicotine receptors in the body, partly turning them on to reduce withdrawal symptoms, but also blocking them from the nicotine in cigarettes and thus making smoking less pleasurable
One flavoring thats quite concerning is diacetyl, which has been linked to a lung disease called bronchiolitis obliterans
Ying KL, Song M-A, Weng DY, Nickerson QA, McElory JP, Brasky TM, Whiteman NB, Wewers MD, Freudenheim JL, Math EA
The risk was even higher, at 72%, if the fathers were exposed to secondhand smoke and went on to smoke themselves, said Jiacheng Liu, from Melbourne University, one of the co-authors