California Flavor Ban Linked to Decline in Youth Vaping Rates

UCSD study finds local flavored tobacco restrictions effective in reducing e-cigarette use among teens without pushing them to cigarettes

Apr. 11, 2026 at 6:25am

Got story updates? Submit your updates here. ›

A UC San Diego study has found that banning flavored tobacco products is linked to lower youth vaping rates, without pushing teens toward traditional cigarettes. The research, based on surveys of over 2.8 million middle and high school students in California, shows that local flavored tobacco bans can be an effective strategy for reducing e-cigarette use among young people.

Why it matters

Youth vaping has been a major public health concern, with nicotine dependence and long-term health risks. This study provides evidence that targeted policies restricting flavored tobacco products can help address the youth vaping epidemic without unintended consequences of increased cigarette smoking.

The details

The UCSD researchers compared tobacco use among students in areas with and without flavored tobacco bans. They found that in jurisdictions with a ban, 6.2% of students reported current e-cigarette use, compared to 7.7% in areas without such policies. Cigarette use remained roughly the same across both types of areas. Many California cities had implemented their own flavored tobacco restrictions years before the statewide ban took effect in 2023.

  • The California Healthy Kids Survey data was collected between 2017 and 2022.
  • Youth vaping rates peaked in 2019 according to national data.
  • California voters approved Proposition 31, a statewide flavored tobacco sales ban, in 2022, which took effect in 2023.

The players

UC San Diego

A public research university located in San Diego, California, and the senior author's institution.

Eric Leas

An assistant professor at the UCSD Herbert Wertheim School of Public Health and Human Longevity Science, and the senior author of the study.

Giovanni Appolon

The first author of the study, who conducted this research as part of his doctoral studies in the UC San Diego - San Diego State University Joint Doctoral Program in Public Health.

Got photos? Submit your photos here. ›

What they’re saying

“Our findings suggest that local flavored tobacco bans can be an effective strategy for reducing youth e-cigarette use.”

— Eric Leas, Assistant Professor, UCSD Herbert Wertheim School of Public Health and Human Longevity Science

“Local policies gave us a valuable window into how flavored tobacco restrictions may influence youth behavior over time. As more jurisdictions adopt these policies, continued monitoring will help determine how enforcement, policy design and community context shape their public health impact.”

— Giovanni Appolon, Doctoral Candidate, UC San Diego - San Diego State University Joint Doctoral Program in Public Health

What’s next

Future research is needed to understand the long-term impact of statewide bans and how similar policies affect youth tobacco use across different regions and communities, according to the study authors.

The takeaway

This study provides evidence that targeted restrictions on flavored tobacco products can be an effective strategy for reducing youth vaping without leading to increased cigarette smoking. As more jurisdictions adopt these policies, continued monitoring will be important to understand their long-term public health impact.