As heated tobacco products reenter the US market, evidence on their safety remains sparse – new study

Heated tobacco products are often marketed by tobacco companies as less harmful than cigarettes, but they can pose health risks to users, according to a new review I co-authored in the journal Tobacco Control. Evidence on their health risks in people who smoke is limited, sometimes contradictory, and hard to make sense of.

Heated tobacco products are electronic devices that heat tobacco so users can inhale nicotine. Common brands include IQOS, available in the U.S., and Ploom and Glo,…