The studies I've read say stimulants in general antagonize or speed up cancer cells. So we might as well pile Caffeine , Sugar, and carbohydrates on the list also.
You dont want to give our readers a false
sense of security that if they stop nicotine you put cancer at bay.
If you drink a cup of coffee in the morning, wash down your lunch with a Cafinated soada in the afternoon, have a bowl of rice for dinner, and piece of cake for desert, your just as likely to increasing the mechanism that feeds cancer cells.
Cancer Loves all these things so doctors will give you a special no stimulant, low carb diet to folllow durring your treatments.
The beauty of PG/VG is we control the nicotine intake, and have the option of cutting it completely while keeping all the flavor, unlike tobacco.