What Is Kanna?

We always get pitches from beverage brands trying to get on the menu at No More, and lately several of them have been kanna. Ask what it is or what it does and you get some variation of social tonic, or social lubricant, without much behind it.

That is not a description. It is a name the category invented for itself, and it does a particular job. It makes the customer picture an evening instead of an effect. Every substance that has come through this aisle in the last three years has worn some version of it. Kava works on the same system as alcohol. Kratom works on the same receptors as opioids. Kanna works on the same protein as antidepressants. Three plants, three different things happening in your body, one identical promise on the can. The description is not describing the ingredient. It is describing what sells this year.

I had never looked into kanna, and for whatever reason I had always pictured a cactus, or something like an aloe. So I figured it was time to find out whether this is something we will be seeing a lot more of in eighteen months, or never again. Right now there are a bit more than a dozen products trying to take a piece of the non-alcoholic space, and every one of them is marketed the same way.

So, is kanna worth your time?

Kanna is a succulent from the dry western edge of South Africa. Not a cactus, and not an aloe either. Succulence is a strategy rather than a family, and unrelated plants arrived at it separately. Kanna belongs to the ice plant family, which is overwhelmingly southern African.

What makes it worth any attention is chemical. It produces compounds called mesembrine alkaloids, and close to nothing else on earth does. In a laboratory they bind the serotonin transporter, the same protein antidepressants act on, and they bind it about as tightly. What separates a kanna capsule from a prescription is the amount: a fraction of a milligram of alkaloids against tens of milligrams of drug. The alkaloids also quiet a second enzyme involved in mood signaling, which makes this a plant with two named mechanisms in a cooler full of hand-waving.

The indigenous peoples of southern Africa used it to blunt hunger and thirst on long journeys, and for fatigue, pain, mood and sleep. The first written account dates to 1662.

A South African pharmaceutical company was cultivating kanna commercially by 1996, chasing psychiatric applications. The patent named depression, anxiety and obsessive-compulsive disorder. No drug ever came of it. At the end of 2012 a standardized extract called Zembrin entered the American market as a supplement ingredient instead, and it has been sold here ever since at 25mg, one capsule a day, for calm and focus. Underneath that capsule sits a handful of small trials, most of them paid for by the extract’s maker.

Thirty years, and the claim barely moved. It takes the edge off.

Read a kanna seller’s site today and watch that claim travel. It starts at natural mood support, where it has always been. Then social confidence, a few drops before a night out, the dancefloor named outright. Then focus and productivity, what one seller calls a clean mental uplift. Four lifestyles out of one ingredient, in a single scroll, ending where the category always ends, on social lubricant.

Kanna is not a stimulant, and nothing in the research points at energy.

But this is not fabrication. Every one of those is a stretch of something real. The plant does appear to take the edge off, and a person less on edge in a room full of people is not a wild leap. The claim is being extended, not invented, which is a harder thing to argue with.

The drinks run the same play. One says kanna makes you feel “present, open, and uplifted,” and that one or two cans set the mood while three or four complete it. Another promises calm, clarity and social ease within half an hour. Every one of them makes the social claim, which no study has tested, and every one describes the tradition as calm and connection, never the hunger, the thirst, the fatigue or the pain.

And most of them are not only kanna. They arrive stacked with L-theanine, magnesium, reishi, electrolytes, sometimes caffeine. L-theanine is the one worth naming: the amino acid in green tea, with placebo-controlled trials at 200mg measuring real effects inside a single sitting. Better evidence than kanna has, for the same calm being sold. We have made a version of this point about functional mushrooms and adaptogens. The amounts are blurry across the board, so it is impossible to know what is making you feel what.

Give kanna its due first. Chemistry found almost nowhere else. Placebo-controlled human trials, which most of that cooler has none of. A brain result that is a measurement and not a survey: sixteen people, one 25mg dose, quieter threat circuitry on a scanner. And since 2008 the standardized extract has carried a benefit-sharing agreement with the South African San Council, a share of every sale into a community trust. Almost nothing else in the aisle can say that, though read the wording: the agreement covers the one extract, and most of the cans do not use it.

Now the other column. Sixteen people is sixteen people. The three-week trial enrolled twenty-one, and two of nine cognitive measures improved. The longest study ever run lasted three months, and most of the money came from the extract’s maker. Pool every trial together, as a 2023 review did, and the effect on anxiety does not separate from placebo. Nothing anywhere has tested the social claim.

The safety file reads the same way. No dependency on record, no organ damage in the trials, no scandal in thirty years of cultivation. Also no study past three months, and a list of medications it must never be mixed with, starting with antidepressants, which work the same system. Nothing documented is a real credential in this aisle. It is not the same as known safe.

The problem is not the plant, and nobody is lying. It is the distance between what was studied and what is being sold, and you cannot see that distance from the shelf. The studies ran on 25mg of a named extract. One soda carries 15mg of that exact extract, under the studied serving, and it is also one of the few drinks that is kanna and nothing else. Another can declares 500mg, twenty times the studied serving. Both are legal, both just say kanna on the front, and most products name the plant and stop there.

So, is it worth your time? If you take an antidepressant, no. Skip the ingredient entirely; the two act on the same system. For everyone else it might take the edge off a little, which is what it has been sold for since the first capsule.

What it will not do is the thing written on the front. Buy it if you like the drink. Just know whether you are buying the drink or the story attached to it.