| Kratom legal status | Banned |
| Kava legal status | Legal |
| CBD / hemp products | Legal (hemp-derived) |
| Psilocybin status | Prohibited |
Wisconsin has scheduled the kratom alkaloids mitragynine and 7-hydroxymitragynine as controlled substances under state law, prohibiting sale, possession, and use of kratom products in the state. Verify current status with the American Kratom Association tracker and the Wisconsin Board of Pharmacy, multiple states have repealed earlier bans following advocacy and updated evidence review.
Kava (Piper methysticum) is legal for sale and consumption in Wisconsin with no statewide scheduling or sales restrictions. Kava bars (commercial kava-serving establishments) operate in many US states. The FDA issued a 2002 consumer advisory about potential hepatotoxicity associated with kava use; subsequent research has generally found risk concentrated in poor-quality preparations, but the advisory remains in place and informs the regulatory posture. Wisconsin may apply general dietary-supplement and food-safety rules to kava products.
Following the 2018 Farm Bill, hemp-derived CBD (cannabidiol from Cannabis sativa containing 0.3% delta-9 THC or less) is federally legal and may be sold in Wisconsin subject to FDA dietary-supplement and food-additive rules and the state's industrial hemp program. Wisconsin may impose specific labeling, testing, or retail registration requirements on CBD products. Delta-8 THC, Delta-10 THC, and other "hemp-derived" cannabinoid isomers exist in a gray zone: federally permitted by some 2018 Farm Bill readings but increasingly restricted at state level. Verify the current Wisconsin Department of Agriculture hemp program rules and any state-specific cannabinoid restrictions.
Psilocybin and psilocin remain DEA Schedule I controlled substances federally and are prohibited under Wisconsin controlled-substance law. Sale, possession, and use carry criminal penalties under Wisconsin statute. Some US municipalities have decriminalized possession through local-priority resolutions (Denver, Oakland, Santa Cruz, Seattle, Detroit, and others) but municipal decriminalization does not change state or federal scheduling. Verify any Wisconsin city-level decriminalization status separately.
Federal law sets the nationwide minimum age for tobacco and nicotine products at 21 (Tobacco 21, 2019). Beyond tobacco/nicotine, US supplement age-restriction is patchwork: dietary supplements under DSHEA generally lack statutory minimum-purchase age at the federal level. Wisconsin does not impose a statewide minimum age for dietary supplement purchase beyond the federal tobacco/nicotine floor. Local municipalities may impose additional age restrictions on specific products (energy drinks, CBD, supplements with stimulant labels). Verify locally before retail operations.
Dietary supplements sold in Wisconsin are subject to FDA labeling rules under the Dietary Supplement Health and Education Act (DSHEA, 1994), requiring Supplement Facts panel, ingredient list, "dietary supplement" identifier, manufacturer/packer/distributor name and address, and the FDA structure-function claim disclaimer where applicable. Wisconsin may impose additional state-specific labeling, testing, or licensing requirements for high-risk categories (kratom, CBD, kava, sports supplements). Verify current rules with the Wisconsin Department of Agriculture and Board of Pharmacy.
Once you understand Wisconsin's legal framework for a supplement, the next question is the underlying evidence and risk profile. See our deep guides on supplement-cardiac safety, plus per-compound guides for ashwagandha, turmeric, and other commonly-asked supplements via our article index.
No. Wisconsin has scheduled kratom alkaloids as controlled substances under state law. Sale, possession, and use of kratom products in Wisconsin carry criminal penalties. Verify current status, multiple states have repealed earlier bans following advocacy and updated evidence review.
Yes. Following the 2018 Farm Bill, hemp-derived CBD (with delta-9 THC ≤ 0.3%) is legal for sale in Wisconsin subject to FDA dietary-supplement and food-additive rules. Verify state-specific labeling, testing, and retail-registration requirements. Hemp-derived intoxicating cannabinoid isomers (Delta-8 THC, Delta-10 THC) sit in a gray zone, increasingly restricted at state level even where standard CBD is permitted.
Psilocybin remains DEA Schedule I federally. Wisconsin prohibits sale, possession, and use of psilocybin under state controlled-substance law. Some US municipalities have decriminalized possession; verify local status separately.
Federal law sets a nationwide minimum age of 21 for tobacco and nicotine products. Beyond tobacco/nicotine, US dietary supplements under DSHEA generally lack statutory minimum-purchase age federally. Local municipalities may impose additional age restrictions on specific products (energy drinks, supplements with stimulant labels).
Claims about what a supplement or treatment does are only as good as the evidence behind them, and the sources below are the primary public ones. They are linked so a reader can check any statement here against the underlying research rather than taking this page's word for it.
This page summarises published evidence. It is not medical advice, and a reader's own clinician decides what applies to them.