Zyn nicotine pouches are the latest US culture-war front – but are they any good?

Tucker Carlson is among those railing against attempts to investigate Zyn's health effects. I thought I'd try it - never again

It began when Chuck Schumer, the Democratic senator, issued a call for Zyn to be regulated.

The nicotine-flavored pouches had become something of a favorite among rightwing influencers and pundits, and backers including Tucker Carlson and others have variously claimed that Zyn can increase testosterone and turn a user into an unstoppable force".