It does not come from tobacco leaves, which eliminates the natural, intricate notes inside tobacco
And you can listen to his full Call Her Daddy interview here.
But it's also concerning because it's a con, an attempt to persuade people not with reason, but rather by gratifying our all-too-human hunger for easy answers
JCI Insight 1 (20), e90558
References: Science Direct: Nicotine, its metabolism and an overview of its biological effects National Institute of Health (NIH): Nicotine Chemistry, Metabolism, Kinetics and Biomarkers NIH: Pharmacology of Nicotine: Addiction, Smoking-Induced Disease, and Therapeutics
Stock by the box as a low-cost, fast-turning impulse item at the counter