The Nicotine Debate Glossary: Key Terms Defined
From 'ENDS' to 'harm reduction' to 'PMTA,' the nicotine debate has a specialized vocabulary. Here's a glossary of key terms, with definitions that acknowledge the controversies behind them.
The nicotine debate has developed a specialized vocabulary that can be impenetrable to newcomers and that often embeds contested assumptions in seemingly neutral terminology. Here is a glossary of key terms, with definitions that acknowledge the controversies they encode.
Combustible tobacco: Tobacco products that are burned and inhaled—cigarettes, cigars, cigarillos, waterpipe, bidis, kreteks. The most harmful category of nicotine products, responsible for the vast majority of tobacco-related disease. The primary target of tobacco control.
Non-combustible nicotine products: Products that deliver nicotine without combustion—vaping products (e-cigarettes), heated tobacco products (IQOS, glo), nicotine pouches (Zyn, Velo), smokeless tobacco (snus, chewing tobacco), and pharmaceutical NRT (patches, gum, lozenges). The risk profiles vary within this category, but all are substantially less harmful than combustible products.
Harm reduction: A public health approach that prioritizes minimizing death and disease over eliminating the underlying behavior. Applied to nicotine: accepting that some people will continue to use nicotine, and focusing on helping them switch to non-combustible products rather than demanding complete abstinence.
Risk-proportionate regulation: A regulatory framework that subjects products to requirements (taxation, marketing restrictions, access controls) calibrated to their risk profile. The lowest-risk products face the lightest regulation; the highest-risk products (combustible cigarettes) face the heaviest.
PMTA: Premarket Tobacco Product Application. The regulatory pathway through which the FDA evaluates new tobacco products. The process requires manufacturers to demonstrate that their products are 'appropriate for the protection of public health.'
ENDS: Electronic Nicotine Delivery Systems. The WHO's preferred term for e-cigarettes and vaping products. The terminology is itself contested: 'e-cigarette' implies similarity to cigarettes; 'vaping' emphasizes the absence of combustion; 'ENDS' is neutral but cumbersome.
Dual use: Simultaneous use of combustible and non-combustible nicotine products—for example, both smoking and vaping. The public health significance is contested: some view it as a transitional state toward complete switching; others view it as a stable pattern that maintains smoking risk.
FCTC: Framework Convention on Tobacco Control. The WHO treaty, ratified by 183 countries, that provides the international legal framework for tobacco control. The FCTC's treatment of novel nicotine products is a central point of controversy in the global nicotine debate.
MPOWER: The WHO's package of evidence-based tobacco control measures: Monitor tobacco use, Protect from secondhand smoke, Offer help to quit, Warn about dangers, Enforce advertising bans, Raise taxes. The framework was designed for combustible cigarettes and is being challenged by the emergence of non-combustible alternatives.
Precautionary principle: The principle that products should be proven safe before being permitted, rather than proven harmful before being restricted. Applied to non-combustible products by those who argue they should be restricted until long-term safety is demonstrated. Criticized by harm-reduction advocates who argue that the precautionary principle, applied symmetrically, would also require restricting combustible cigarettes (which are known to be lethal).
