Kava and kratom are two different plants that happen to be sold at the same counter in a lot of kava bars. They are often described with the same vocabulary, mixed into the same house drinks, and treated by customers as interchangeable. They are not. They come from different plant families, act on different receptors in the brain, carry different risks, and have different legal and regulatory statuses. Knowing the difference is the single most useful thing you can do before you walk into a kava bar, and most explainers skip it.
This is the honest comparison. We track kava bars across the country in our kava bar directory, and we wrote a full guide to what a kava bar is for first-timers. This piece is specifically about kava vs kratom, because the safety question is where they actually diverge.
Important safety information first
Kava and kratom are not the same substance, and kratom carries genuine dependence and withdrawal risk that kava does not. Kratom acts on opioid receptors. Kava does not. Poison control calls attributed to “kava bars” in press coverage are largely driven by kratom and by mixed products, not by traditional water-prepared kava root. If you are going to a kava bar for the low-key social thing and you do not want an opioid-receptor agonist, order kava specifically and ask what is in anything labeled a house blend. We cover the pharmacology in detail in our science behind kava piece.
What kava is
Kava is made from the root of Piper methysticum, a plant in the pepper family native to the Pacific Islands. It has been used for around three thousand years in Fiji, Vanuatu, Tonga, and Samoa as a ceremonial and social drink. The active compounds are kavalactones, which act primarily on GABA-A receptors. The effect is muscle relaxation and reduced anxiety with cognition basically intact. It is not an opioid, it does not act on opioid receptors, and it does not produce the euphoric high or the dependence profile that opioids do.
Kava is legal across the United States. The FDA does not classify it as generally recognized as safe, and the CDC issued a warning in April 2026 about rising kava-related health reports, with poison control calls rising 383% between 2011 and 2025. Those numbers are largely driven by concentrated extracts, mixed products, and people combining kava with other substances rather than by traditional water-prepared root, but they are real.
What kratom is
Kratom is made from the leaves of Mitragyna speciosa, a tree in the coffee family native to Southeast Asia. The active compounds are mitragynine and 7-hydroxymitragynine, which act on opioid receptors. At low doses it produces stimulation. At higher doses it produces sedation and opioid-like effects. It carries documented dependence and withdrawal risk, and it is the substance behind a large share of the poison control reports that get attributed to kava bars in press coverage.
Kratom is legal at the federal level in the United States but is banned or restricted in several states, including Alabama, Arkansas, Indiana, Rhode Island, Vermont, and Wisconsin, and in a patchwork of local jurisdictions. The regulatory picture changes often. If you are traveling, check the current law where you are.
The side-by-side comparison
| Kava | Kratom | |
|---|---|---|
| Plant | Piper methysticum (pepper family) | Mitragyna speciosa (coffee family) |
| Part used | Root | Leaves |
| Active compounds | Kavalactones | Mitragynine, 7-hydroxymitragynine |
| Primary receptor | GABA-A (modulated, not opioid) | Opioid receptors |
| Felt effect | Muscle relaxation, reduced anxiety, clear head | Stimulation at low doses, sedation and opioid-like effects at higher doses |
| Dependence risk | Low | Documented, including withdrawal |
| Traditional use | Thousands of years as a ceremonial social drink in the Pacific Islands | Historical use in Southeast Asia for labor and pain; modern recreational use in the US is recent |
| US legal status | Legal federally; not regulated as a drug | Legal federally but banned or restricted in several states |
| FDA GRAS | No | No |
| Driving | Do not drive after drinking | Do not drive after drinking |
The receptor column is the one that matters most. GABA-A modulation is what benzodiazepines do, but kava acts on a different site on the receptor and does not produce the tolerance and dependence that benzodiazepines do. Opioid receptor agonism is what prescription opioids and heroin do. Kratom is weaker than prescription opioids, but it is in the same receptor family, and the dependence and withdrawal risk is real.
Why kava bars sell both
Most kava bars sell kratom because customers want it and the margins are good, not because the two substances are related. The format (order at a counter, sit on a couch, talk to people) works for both. The problem is that a customer who walks in expecting a relaxing kava shell and orders a house blend may get kratom without knowing it. That is not always disclosed clearly, and the two substances are routinely described with overlapping vocabulary (relaxing, calming, herbal).
If you go to a kava bar and you specifically want kava, say so. Ask what is in anything labeled a specialty drink, a house blend, or a relaxer. A good kavatender will tell you straight. One who is evasive tells you something too.
Who should skip which
Skip kava if you have liver disease, are pregnant or nursing, take benzodiazepines, sedatives, antidepressants, or antipsychotics, drink alcohol that night, or drive home within a few hours.
Skip kratom if you have any history of opioid use disorder, are pregnant or nursing, take prescription medications metabolized by the liver, or have any reason to avoid opioid-receptor agonists. The dependence and withdrawal risk means kratom is not a casual purchase the way kava can be.
Neither substance is appropriate if you are looking for something to combine with alcohol. Mixing either with alcohol is a bad idea.
What the science says
The evidence on kava for anxiety is substantial. Meta-analyses show it outperforms placebo with effect sizes comparable to established anti-anxiety medications, while causing none of the dependence or cognitive fog associated with benzodiazepines. The hepatotoxicity concerns that led to bans in the early 2000s were largely traced to quality control failures and to the use of leaves and stems rather than root, not to kava itself. The pharmacology is covered in detail in our science behind kava piece.
The evidence on kratom is messier. It clearly produces opioid-like effects, it clearly carries dependence risk, and the poison control data is real. It is not regulated as a drug in the US, which means quality and dosing vary widely. Most serious adverse events involve kratom combined with other substances, high doses, or pre-existing conditions.
The bottom line
Kava and kratom are sold at the same counter but they are not the same thing. Kava is a Pacific Island root with a long safety record when prepared traditionally. Kratom is a Southeast Asian leaf that acts on opioid receptors and carries real dependence risk. If you go to a kava bar, know which one you are ordering. If you want to find one near you, browse our kava bar directory, and read the first-timer’s guide for ordering and etiquette.
This article is general information, not medical advice. Both kava and kratom interact with medications and are not appropriate for everyone. Talk to a healthcare provider about your own situation, particularly if you take prescription medication, have any liver concerns, or have a history of substance use disorder.
