What to know about Zyn, the tiny nicotine pouch that's sparked a big health debate

WASHINGTON (AP) — A tiny Philip Morris product called Zyn has been making big headlines, sparking debate about whether new nicotine-based alternatives intended for adults may be catching on with underage teens and adolescents.

Here’s what to know about Zyn:

Zyn is an oral pouch that contains nicotine powder and flavorings like mint, coffee and citrus. The pouches are the fastest-growing segment of the tobacco industry, which has struggled for decades to replace falling cigarette sales.