# Kanna Drinks

> Kanna Drinks (kannadrinks.com) is an evidence-based guide to kanna (Sceletium tortuosum), the South African succulent, and the drinks and supplements made with it: what kanna is, what the published human research shows, doses used in studies, safety and drug interactions, legal status, and side-by-side comparisons of US kanna drinks and supplements by label data. Every scientific claim is cited to PubMed or a government source. Published by Psilly Goose, Inc., maker of Silly (ranked #1 among kanna drinks); ownership is disclosed on every page.

Key facts:
- Kanna = Sceletium tortuosum, a succulent from South Africa; main alkaloids are mesembrine-type compounds.
- Published human trials mostly used Zembrin, a standardized extract, at 8 to 50 mg; trials are small and several were industry-funded.
- Kanna may interact with SSRIs, SNRIs, MAOIs and other serotonergic drugs; it is not FDA-approved to treat any condition.

Last updated: 2026-10-29

## Core guides
- [About Kanna Drinks](https://kannadrinks.com/about/): Who publishes this site, how we rank drinks, and how to reach us.
- [Best Kanna Supplements, Scored on Label Transparency](https://kannadrinks.com/best-kanna-supplements/): Eleven kanna capsules, tablets and powders ranked by how much their own product pages disclose, not by how they feel.
- [The Best Kanna Drinks of 2026, Compared](https://kannadrinks.com/): Six kanna drinks, side by side: how much kanna is actually in each can, what else is in there, and what you pay per can.
- [Is Kanna Legal? Federal Status, Louisiana and What We Could Not Verify](https://kannadrinks.com/is-kanna-legal/): Not federally scheduled, not approved by the FDA, and Louisiana's plant statute names the genus kanna belongs to. Here is exactly what we checked.
- [Is Kanna Safe? Side Effects, Interactions and Who Should Skip It](https://kannadrinks.com/is-kanna-safe/): Short human trials look well tolerated in healthy adults, but the data are small, and anyone on serotonin-affecting medicine should talk to a doctor first.
- [Kanna Benefits: What the Research Actually Shows](https://kannadrinks.com/kanna-benefits/): A handful of small human studies, mostly of one standardized extract, in healthy people. Here is what they found and what they cannot tell you.
- [Kanna Dosage: How Much Kanna Is in a Drink?](https://kannadrinks.com/kanna-dosage/): Clinical studies used 8 to 25 mg of one extract. Cans on the shelf range from 15 mg to 500 mg of different things.
- [Kanna vs Kava: What Is the Difference?](https://kannadrinks.com/kanna-vs-kava/): Two plants, two sets of compounds, two safety profiles, and a few drinks that blend them.
- [What Is Kanna?](https://kannadrinks.com/what-is-kanna/): A plain-English guide to the South African succulent behind a growing number of non-alcoholic drinks.

## Kanna supplements
- [How to Read a Kanna Label (and Check a Certificate of Analysis)](https://kannadrinks.com/blog/how-to-read-a-kanna-label/): Most kanna labels give you a milligram number and little else. Here is what to look for, what the number can't tell you, and which questions to ask the brand.
- [Kanna Capsules: What Is Inside and How to Read the Label](https://kannadrinks.com/blog/kanna-capsules/): The capsule is the most common kanna supplement, and the milligram number printed on it may not mean what you think.
- [Kanna Extract: What Ratios, Standardization and Milligrams Actually Tell You](https://kannadrinks.com/blog/kanna-extract/): A label that says '20:1 kanna extract' sounds precise. It describes how much plant went into the extract, not how much of anything active is in it.
- [Kanna Powder: Leaf, Extract and Fermented Explained](https://kannadrinks.com/blog/kanna-powder/): Two jars labeled kanna powder can hold very different things, and the milligrams on the label will not tell you which.
- [Kanna Supplements: Forms, Labels and What the FDA Does and Does Not Do](https://kannadrinks.com/blog/kanna-supplements-guide/): Capsules, powders, tinctures, teas and drinks all say 'kanna', but they can contain very different things. Here is how to tell them apart.
- [Kanna Tea: What Is Known and What Is Not](https://kannadrinks.com/blog/kanna-tea/): Tea is a modern product with traditional echoes, and almost nothing about it has been studied directly.
- [Kanna Tincture: How to Read the Ratio and the Label](https://kannadrinks.com/blog/kanna-tincture/): Tinctures are the oldest documented liquid form of kanna, and the ratio on the bottle is the number most buyers misread.
- [Where to Buy Kanna: A Buyer's Checklist](https://kannadrinks.com/blog/where-to-buy-kanna/): We do not rank sellers here. We list what to check, whichever seller you land on.
- [Zembrin: What It Is, What the Trials Tested and Who Paid for Them](https://kannadrinks.com/blog/zembrin/): Most human research on kanna used one branded extract. That is useful, and it comes with caveats worth knowing.

## Kanna safety
- [Is Kanna Addictive?](https://kannadrinks.com/blog/is-kanna-addictive/): No clinical study has asked whether kanna causes dependence or withdrawal. Here is what exists, what does not, and why the answer is 'unknown' rather than 'no'.
- [Kanna and Caffeine: What Is Known About Combining Them](https://kannadrinks.com/blog/kanna-and-caffeine/): Coffee, energy drinks and pre-workout are everywhere, and so are kanna drinks. Whether the two interact has not been studied in people that we could find.
- [Kanna and SSRIs: Why the Combination Is Flagged](https://kannadrinks.com/blog/kanna-and-ssris/): The concern is mechanistic, not documented in case reports we could find, and it is exactly why a prescriber or pharmacist should hear about it first.
- [Kanna Drug Interactions: What Is Documented, Theoretical or Unknown](https://kannadrinks.com/blog/kanna-drug-interactions/): We found no documented kanna interaction in people, so this page sorts the cautions by how much evidence stands behind each one.
- [Does Kanna Show Up on a Drug Test?](https://kannadrinks.com/blog/kanna-drug-test/): Standard panels do not list kanna. Whether it can cause a positive result has not been published, and product contamination is its own question.
- [Kanna Side Effects: What the Studies Recorded](https://kannadrinks.com/blog/kanna-side-effects/): Small trials in healthy adults recorded few adverse events, but the data are short, narrow and mostly tied to one extract.
- [Kanna Tolerance: Reports vs. Evidence](https://kannadrinks.com/blog/kanna-tolerance/): Online forums are full of claims about tolerance, reverse tolerance and tolerance breaks. The research has not tested any of them.
- [Who Should Not Take Kanna?](https://kannadrinks.com/blog/who-should-not-take-kanna/): For several groups the research is silent, and silence is a reason to ask a clinician before trying it, not a green light.

## How to use kanna
- [How Long Does Kanna Last?](https://kannadrinks.com/blog/how-long-does-kanna-last/): Forum answers range from one hour to six. We searched the published research for a measured number and report what turned up.
- [How Much Kanna Is in a Kanna Drink?](https://kannadrinks.com/blog/how-much-kanna-in-a-drink/): The number on the can is only part of the story. What it measures, which extract it names and what else is in the can matter just as much.
- [How to Take Kanna: What the Evidence and the Label Say](https://kannadrinks.com/blog/how-to-take-kanna/): Vendors disagree about the best way to take kanna. Here is what was actually studied, what was not, and where the honest answer is 'we don't know.'
- [Kanna Microdosing: What It Means and What Is Known](https://kannadrinks.com/blog/kanna-microdosing/): 'Microdose' is a vendor term with no standard definition for kanna. Here is what studies actually used, what labels say, and what nobody has tested.

## Kanna science & history
- [How Does Kanna Work?](https://kannadrinks.com/blog/how-does-kanna-work/): Two lab findings, one counter-finding, and a long list of things nobody has measured in people yet.
- [Kanna Clinical Studies: Every Published Human Trial](https://kannadrinks.com/blog/kanna-clinical-studies/): Seven published human studies, all of one branded extract, none in patients. Here is each one, side by side, with who paid for it.
- [Kanna History: The Khoikhoi, the San and Sceletium](https://kannadrinks.com/blog/kanna-history/): A plant used for centuries before anyone wrote about it, and what the written record, and the modern business around it, can and cannot tell us.
- [What the Research Says About Kanna, Mood and Sleep](https://kannadrinks.com/blog/kanna-mood-and-sleep-research/): Mood and sleep were secondary measures in a few small studies of healthy adults. Here is what was recorded, what did not move, and what has never been tested.
- [The Kanna Plant: A Plain Guide to Sceletium tortuosum](https://kannadrinks.com/blog/kanna-plant-guide/): What the plant looks like, where it grows, why two plants can differ chemically, and what its conservation status actually is.
- [What the Research Says About Kanna, Stress and Focus](https://kannadrinks.com/blog/kanna-stress-and-focus-research/): A brain scan, a mock public speech, reaction tasks and memory tests. Here is what each measured, what moved, what did not, and how much weight it can bear.
- [Mesembrine: What It Is, What Lab Studies Found, and What Labels Leave Out](https://kannadrinks.com/blog/mesembrine/): Mesembrine gets the most attention of kanna's alkaloids, but it is one of 25, and the best-studied extract is low in it.

## Kanna comparisons
- [Kanna vs Alcohol: A Side-by-Side, Evidence-First Comparison](https://kannadrinks.com/blog/kanna-vs-alcohol/): One is a centuries-old South African succulent studied in small trials. The other is a beverage ingredient with decades of public-health data. They are not equivalents.
- [Kanna vs Ashwagandha: What the Research Shows](https://kannadrinks.com/blog/kanna-vs-ashwagandha/): Both get called calming botanicals. The evidence behind each, and the cautions, are quite different.
- [Kava vs Kratom vs Kanna: A Side-by-Side Comparison](https://kannadrinks.com/blog/kanna-vs-kava-vs-kratom/): Three plants often sold in the same kind of shop, with almost nothing in common chemically or legally.
- [Kanna vs Kratom: What Is the Difference?](https://kannadrinks.com/blog/kanna-vs-kratom/): They get lumped together as 'mood plants,' but the chemistry, the regulatory record and the safety questions are not alike.
- [Kanna vs L-Theanine: What Is the Difference?](https://kannadrinks.com/blog/kanna-vs-l-theanine/): One is a plant extract with a few small trials, the other a tea amino acid with more studies and a long list of caveats.

## Alcohol alternatives
- [The Best Alcohol Alternatives in 2026, Category by Category](https://kannadrinks.com/blog/best-alcohol-alternatives/): Seven kinds of drinks people reach for instead of alcohol, with what each does well and where each falls short.
- [Non-Alcoholic Drinks to Relax With in the Evening](https://kannadrinks.com/blog/drinks-to-relax-without-alcohol/): The evening glass is often about the ritual. Here is how to keep the ritual and skip the alcohol, with honest notes on what the research does and does not show.
- [Dry January Drinks: A Practical Plan for January 2027](https://kannadrinks.com/blog/dry-january-drinks/): What to stock, what to order, and how to get through the month, plus an honest look at what the research on a month off does and does not show.
- [Kanna as an Alcohol Alternative: What to Know Before You Try It](https://kannadrinks.com/blog/kanna-alcohol-alternative/): A kanna drink can be a non-alcoholic option at the table. Here is what that does and does not mean.
- [Can You Mix Kanna and Alcohol?](https://kannadrinks.com/blog/kanna-and-alcohol/): The short version: nobody has studied it in people, both affect the brain, and we recommend not combining them.
- [Sober Curious Drinks: What to Order at a Bar, Party or Dinner](https://kannadrinks.com/blog/sober-curious-drinks/): You are drinking less, or not at all, and still want a good glass in your hand. Here is what to order, bring and say.

## Kanna explained
- [Is Kanna Legal in My State? What 50 States' Laws Say (and Don't)](https://kannadrinks.com/blog/is-kanna-legal-by-state/): We searched each state's drug schedules for kanna, Sceletium and Mesembryanthemum. One state names it; some states we could not fully check.
- [Is Kanna Legal in Louisiana? What Act 159 and R.S. 40:989.1 Actually Say](https://kannadrinks.com/blog/is-kanna-legal-in-louisiana/): Louisiana is the one state where we found a statute that names kanna's genus. Here is the text, the exception, and the questions it leaves open.
- [Kanna and Kava Drinks: What Is Known About the Blend](https://kannadrinks.com/blog/kanna-and-kava-drinks/): Several new drinks put kanna and kava in the same can. The labels are clear; the research on the combination is not there.
- [Kanna Shots, Seltzers and Sodas: What the Formats Mean](https://kannadrinks.com/blog/kanna-shots-seltzers-and-sodas/): A shot, a spritz and a soda can all contain kanna. The name on the front tells you the format, not the amount.
- [What Are Functional Beverages?](https://kannadrinks.com/blog/functional-beverages-explained/): The term sounds official. It is not. Here is what it means, how the rules work, and what to check on a can.
- [Kanna and Lion's Mane: What Does the Research Show?](https://kannadrinks.com/blog/kanna-and-lions-mane/): Two ingredients, two small bodies of research, and no study of the pair. A fair look at each.
- [Kanna Drinks vs Capsules, Tinctures and Chewing](https://kannadrinks.com/blog/kanna-drinks-vs-capsules/): Format changes convenience and labeling more than it changes what is known. Here is what the evidence does and does not say.
- [What Does Kanna Feel Like?](https://kannadrinks.com/blog/what-does-kanna-feel-like/): No feeling is guaranteed. Here is what the studies measured, what people report, and why your experience may differ.