It seemed obese smokers were less likely to die. It is not the cigarette but perhaps the nicotine. User DavidNipondeCarlos, in the KetoScience subreddit, 23 Apr 2021
Anti-inflammatory effects of nicotine in obesity and ulcerative colitis User DavidNipondeCarlos, in the Keto4Diabetes subreddit, 23 Apr 2021