does chewing tobacco affect ketosis Risks of How Smoking Impacts Ketosis

[2] Diseases related to tobacco smoking have been shown to kill approximately half of long-term smokers when compared to average mortality rates faced by non-smokers

Health risks of smokeless tobacco (2020)

Hickman E, Roca C, Zorn BT, Rebuli ME, Robinette C, Wolfgang MC, et al

Even without tobacco, pure nicotine from gums, pouches, or vaping can create dependence, making stopping challenging

While chronic tobacco use and vaping before or after TBI can exacerbate injury, animal studies report that nicotine itself has shown neuroprotective effects by regulating nicotine receptors (nAChRs) and enhancing dopamine signaling