Last revised 18 September 2026. This guide was rewritten to remove wellness claims, correct two miscredited sources, and rebuild the product section around what we currently stock. What changed is listed under How we revise this guide.

Kava does not treat, prevent, or cure a urinary tract infection. If you think you have one, call a healthcare provider. A UTI is usually a bacterial infection, and it needs medical care.

This page exists because people search that question, and because most kava content online is marketed, not explained. So here is the plain version: what kava is, what we sell, what we will not say about it, and where the safety information comes from.

The short version

• Kava doesn't treat a UTI. A UTI is usually bacterial and needs a healthcare provider.
• Kava is the root of Piper methysticum, a South Pacific plant. The root is prepared in water and has been shared at gatherings and ceremonies for centuries.
• We don't make health claims about it. Not for UTIs, not for anything else.
• The National Institutes of Health reports that kava products have been linked to rare cases of liver injury, some serious or fatal, and that the FDA issued a consumer advisory about it on 25 March 2002.
• Don't mix kava with alcohol.
• Our tonics are made with kava root extract and Mitragyna speciosa. They're for adults 21 and over, and not for anyone who is pregnant or breastfeeding.
• We stock five products. Formats and prices are in the table below.

Kava and UTIs: the straight answer

Kava does not treat, prevent, or cure a urinary tract infection. It doesn't treat any infection.

A urinary tract infection is usually bacterial. Clearing a bacterial infection takes evaluation by a healthcare provider, who may prescribe antibiotics. Left alone, a UTI can move to the kidneys, which is more serious. No drink reaches the bacteria.

The myth seems to come from two places. One is vague wellness writing that hints a botanical drink can handle nearly anything. The other is a mix-up between drinking fluids, which is ordinary advice when you're unwell, and treating an infection, which is a medical job. They aren't the same thing.

If you have symptoms, call a provider.

What kava is

Kava comes from the root of Piper methysticum, a plant native to the islands of the South Pacific. The root is prepared in water. People across the region have prepared and shared it at gatherings and ceremonies for centuries.

Growers distinguish noble varieties of the plant from others. Our tonics are made with noble kava root extract.

It's a drink, not a medicine. It isn't approved to treat anything, and we don't present it as a remedy.

Kava reaches the US market in a few formats: fresh root preparations, powders, extracts, and ready-to-drink beverages. The format changes how you get it. It doesn't change what it is.

What we don't claim

We don't say our drinks treat, prevent, or cure anything. Not infections, not stress, not sleep, not pain. If you've read otherwise somewhere on this site, that's old copy and it's on our list to fix.

We don't publish serving guidance or onset times. That's medical guidance, and we're not qualified to give it. Read the label, and talk to your provider.

We describe the tonics as alcohol-free because that's a fact about what's in the bottle. We don't go further than that.

What we will put in writing: format, origin, what the lab report says, and price.

Safety facts worth knowing

The liver is the important one. The National Center for Complementary and Integrative Health, part of the National Institutes of Health, reports that kava products have been linked to rare cases of liver injury, some of which have been serious or fatal. The NIH Office of Dietary Supplements records that the FDA issued a consumer advisory on this on 25 March 2002. Rare is not the same as never.

So: talk with a healthcare provider before using kava if you have a liver condition, take any medication, or have any health concern at all.

Don't mix kava with alcohol.

Don't drive, operate machinery, or swim after drinking one of our tonics.

Our tonics are made with kava root extract and Mitragyna speciosa. They're for adults 21 and over. They're not for anyone who is pregnant or breastfeeding.

Rules for these products vary by state and by county, and they have moved more than once this year. Each product page lists the states and counties we can't ship that product to. Where a specific rule is worth explaining, we write it up on its own: what Minnesota's 21 rule covers, and whether North Dakota's ban covers kava drinks.

What we actually stock

Our whole catalog is five products. Prices below are current as of the revision date at the top of this page.

Each product page links to the lab results for that product. If you want to know what the numbers on one mean, how to read the lab report on a kratom drink you already own goes through it line by line. You can see all five in the shop.

What we don't sell

Worth saying plainly, because older articles on this site reference things we don't carry.

We don't sell whole or ground kava root, kava capsules, or kava tinctures. We don't sell instant kava either, though our extract powder is also something you mix into a drink, so the line between the two is worth knowing. Three of our five products are ready-to-drink tonics, one is a set of those three, and one is that extract powder.

There's also no three-bottle flavor sampler. An earlier version of this article linked to one. It doesn't exist. The closest thing we make is the Bundle, which is the three flavors together.

How we revise this guide

This page isn't finished, and it isn't meant to be. We revise these guides as rules change, as lab results come in, and as we learn we got something wrong. The date at the top is the point of the whole thing. If it's old, treat it as old.

When we change something, we say what changed. And if we've got something wrong here, we'd rather hear it. Send a correction to info@grassrootsharvest.com and we'll look at it.

Revision history

• 18 September 2026. Rewrote the guide. Removed health and effect claims throughout. Removed serving and timing guidance. Corrected two sources that were credited to the National Institutes of Health but linked to a commercial health site. Rebuilt the product section from the live catalog and removed a link to a product we don't sell. Retitled the page. Clarified that our extract powder is not the same thing as instant kava.
• 24 June 2026. First version published, carried over from our previous website.

Frequently asked questions

Does kava treat a urinary tract infection?

No. Kava does not treat, prevent, or cure a UTI or any other infection. A UTI is usually a bacterial infection that needs a healthcare provider and often antibiotics. Using kava instead of medical care could let it get worse.

Is kava safe?

Natural doesn't mean risk-free. The National Institutes of Health reports that kava products have been linked to rare cases of liver injury, some serious or fatal, and the FDA issued a consumer advisory about it in March 2002. Don't mix kava with alcohol. Talk with a healthcare provider first if you have a liver condition, take medication, or are pregnant or breastfeeding.

What's in a GÜD Tonics drink?

Noble kava root extract and Mitragyna speciosa, plus the flavor. The full ingredient list and the lab results are on each product page.

Do I have to be 21 to buy these?

Yes. Our tonics contain Mitragyna speciosa and are for adults 21 and over only.

Can I drink kava with alcohol?

No. Don't combine them.

Where do you ship?

Not everywhere. Rules vary by state and by county and they change. Each product page lists the places we can't ship that product.

The short of it

Kava doesn't treat a UTI. It's a South Pacific root, prepared in water, shared socially for a very long time. We sell five things made with it, the lab results are on every product page, the liver advisory is real and worth reading, and our tonics are for adults 21 and over.

If you came here with UTI symptoms, the useful next step is a phone call to a healthcare provider.