In a very simplistic way: - Smoking brings cancer and damages lungs. - Vaping damages lungs (more research needed on other possible conditions). - Nicotine p

In a very simplistic way: - Smoking brings cancer and damages lungs. - Vaping damages lungs (more research needed on other possible conditions). - Nicotine pouches damage teeth. I suppose the healthiest way of ingesting nicotine would be nicotine pills, which exist to help people quit smoking (and which is why they are very expensive).