There are different kinds of dependencies; the human brain needs nicotine to function properly, more than you get from modern food. Not recommending tobacco, nor big pharma crap, there are supplements.
- 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).
Never heard of "human brain needs nicotine" before...
https://pubmed.ncbi.nlm.nih.gov/8741955/
There’s more you can find, too. Really interesting stuff. Unfortunate that nicotine is both incredibly harmful and incredibly addictive.