Table 1.

Topics and subtopics of Reddit posts on oral nicotine pouches.

Topics and subtopics		Description
Sharing product information and user experience
	Products	Posts where users were sharing about specific oral nicotine pouch products.
	User experiences	Posts where users were sharing the experience of how they were using oral nicotine pouches and how they felt about them when they were using the products.
	Opinions	Posts where users were sharing subjective points of view about the products.
	Information	Posts where users were sharing information that they obtained elsewhere.
	Others	Posts about other things like sharing homemade oral nicotine product recipes.
Asking oral nicotine pouch–related questions
	Characteristics of oral nicotine pouches	Posts about the properties of oral nicotine pouches such as nicotine strength, flavors, and packaging.
	Product recommendation	Posts that were asking for recommendations of oral nicotine pouch products.
	Order or purchase information	Posts asking for information about the online and offline purchase of oral nicotine pouches.
	Others	Posts asking uncommon questions, like asking for opinions about the future of the oral nicotine pouch market.
Quitting nicotine products
	Using oral nicotine pouches to quit vaping	Posts by users who were discussing intentions to use, attempts to use, or successful use of certain oral nicotine pouch products to quit vaping
	Using oral nicotine pouches to quit smoking	Posts by users who were discussing intentions to use, attempts to use, or successful use of certain oral nicotine pouch products to quit smoking
	Quitting oral nicotine pouches	Users of the posts intended to, were attempting to, or have successfully quit oral nicotine pouches
	Others	Posts that shared experience using oral nicotine pouches to quit other nicotine-related products like tobacco and nicotine itself
Discussing oral nicotine pouch–related health
	Health symptoms	Posts discussing having negative health symptoms after the consumption of oral nicotine pouches, like gum bleeding and sickness
	Health concerns	Posts that expressed health concerns with oral nicotine pouches. Users of those posts expressed worries about the potential side effects of oral nicotine pouches, including the symptoms above and addiction to nicotine.
Legality and permissions		Posts that were discussing the regulatory policies and legal issues related to oral nicotine pouches