A clear glass of liquid sitting on a bathroom counter, evoking the wellness-trend framing of urine therapy content online.

Does urine therapy actually do anything?

By Yash Malviya·

Photo: Ron Lach / Pexels

Social media videos claim drinking your own urine returns lost nutrients to your body, but urologists and oncologists say the composition of urine, and the evidence behind the claim, say otherwise.

Urine therapy does not work. Drinking urine provides no proven health benefit, does not cure cancer, HIV or diabetes, and can increase dehydration rather than relieve it. The practice has circulated online for years, but the medical evidence behind it has not changed: there isn't any.

What the trend actually claims

Viral videos, often from self-styled wellness practitioners with no medical training, claim urine contains thousands of compounds the body "wastes" by excreting them, including magnesium, serotonin and growth hormone, and that drinking it again returns those nutrients to the body. One widely shared reel cited a figure of 5,662 separate ingredients in urine. The framing makes urination sound like a design flaw the body needs correcting, rather than exactly what the kidneys are built to do.

What urine actually is

Healthy urine is roughly 91 to 96 percent water. The rest is mostly urea, salt and other waste products that the kidneys have deliberately filtered out of the bloodstream because the body does not need them anymore. Any trace vitamins, hormones or minerals present are there because the kidneys removed a small excess, not because urine is a hidden nutrient reserve. A 2016 report in the Journal of Urology reviewed the broader claims around urine therapy and concluded that much of what circulates about its supposed benefits has no medical basis.

“Drinking urine can actually increase dehydration because of its salt and waste content.”

Dr Neel Parekh, urologist, Cleveland Clinic

The dehydration and infection problem

The trend is often pitched partly as a hydration hack, which doctors say gets the physiology backwards. "Drinking urine can actually increase dehydration because of its salt and waste content," said Dr Neel Parekh, a urologist speaking to Cleveland Clinic. The body excretes salt and urea in urine precisely because they are in excess; reintroducing them pulls more water out of cells to process them again. Urine also isn't the sterile liquid some wellness content claims. Healthy urine always carries trace bacteria and other microbes, and it can pick up more passing through the urinary tract, which is part of why urologists warn against drinking it regularly.

Urologists say healthy urine is mostly water, salt and waste the kidneys have already filtered out, not a reservoir of reusable nutrients.
Urologists say healthy urine is mostly water, salt and waste the kidneys have already filtered out, not a reservoir of reusable nutrients. Photo: Gustavo Fring / Pexels

The disease-curing claims don't hold up either

The more serious version of this trend involves claims that urine therapy can treat or even cure cancer, HIV, diabetes or kidney failure, sometimes as an alternative to actual treatment. Mark McKeage, a medical oncologist at the Auckland Cancer Society Research Centre with more than 25 years of clinical practice, said he has never used urine therapy as a cancer treatment and is unaware of any robust evidence supporting claims that it cures cancer or HIV. Ian Musgrave, a molecular pharmacologist and toxicologist at the University of Adelaide, went further, calling it a niche alternative therapy with wildly implausible claims and no scientific backing, and warning that choosing it over conventional treatment for a serious illness could lead to death. That is the real risk here: not the taste or the ick factor, but someone delaying or skipping actual medical care for something with zero supporting evidence.

The thousands of ingredients number is a trick of scale

Part of what makes the claim persuasive is the specific-sounding number. A reel that cites urine containing 5,662 separate compounds sounds like a precise scientific fact, but it is measuring breadth, not benefit. Modern analytical chemistry can detect thousands of trace compounds in almost any biological fluid, blood, sweat or saliva included, simply because detection technology has gotten extremely sensitive. A long list of detectable molecules is not the same as a meaningful dose of anything useful. The vast majority of those compounds are present in quantities so small they have no measurable effect on the body, whether they are in urine, sweat or tap water.

There is one scientific detail that genuinely gets misused in these claims: a 2018 study reporting that cow urine extracts killed cancer cells in a lab dish. Musgrave, the toxicologist, has acknowledged that cow urine extracts may act on cancer cells or viruses in a test tube, but notes that effect does not carry over to drinking it, since stomach acid, dilution and the body's processing bear no resemblance to a petri dish. Media coverage of that study was, in his assessment, highly exaggerated, and it has since circulated as if it proves human urine therapy works, which it does not show at all.

“I am unaware of any robust evidence supporting this claim that drinking urine can cure cancer or HIV.”

Mark McKeage, medical oncologist, Auckland Cancer Society Research Centre

Why this keeps resurfacing

Urine therapy fits a pattern familiar to anyone who has watched a parasite cleanse or liver detox tea trend online: a claim that the body is secretly full of trapped toxins or wasted nutrients, paired with a dramatic, free or cheap fix that conventional medicine supposedly overlooks. The practice does have genuine ancient roots in several cultures, which gives it a veneer of tradition, but a long history of use is not evidence that something works, and no modern research has closed that gap.

Our take

There is nothing in urine worth drinking back, and the claims that it treats serious disease are not just unsupported, they're flagged by working oncologists and urologists as actively risky when they replace real treatment. This is one wellness trend that is safe to ignore entirely.

This is general information, not medical advice. Talk to a clinician before changing anything, especially if you are pregnant, nursing, or managing a condition.

Frequently asked questions

Does urine therapy work?

No credible evidence supports it. A 2016 Journal of Urology report concluded that most urine therapy claims have no medical basis, and urine is mostly water, salt and waste the kidneys already filtered out, not a store of reusable nutrients. Doctors say it can worsen dehydration rather than help it.

Is drinking urine good for your health?

No. Urologists note that drinking urine can increase dehydration because of its salt and waste content, the opposite of the hydration claim often made for it. Urine also carries trace bacteria, so regularly drinking it adds infection risk rather than any proven benefit.

Can urine therapy cure cancer or other diseases?

No. A medical oncologist at the Auckland Cancer Society Research Centre said he is unaware of any robust evidence that drinking urine cures cancer or HIV, after more than 25 years of clinical practice. Fact-checks of viral claims about urine curing cancer, diabetes and kidney failure have all rated them false.

What is actually in urine?

Healthy urine is roughly 91 to 96 percent water, with the remainder made up mostly of urea, salt and other waste products the kidneys filter out of the blood. The small amounts of vitamins, hormones or minerals present are far too diluted to meaningfully affect the body if reabsorbed by drinking it.

Is urine sterile?

No, despite a common claim in urine therapy content. Urologists say healthy urine always carries trace quantities of bacteria and other microbes. It can also pick up more bacteria passing through the urethra, which is one reason doctors warn against drinking it.

Why do people believe urine therapy works?

The practice has ancient roots and has been used in various cultures for centuries, which lends it a sense of tradition online. Modern promotion mostly comes from wellness influencers without medical training making dramatic claims, not from new scientific evidence, and researchers who have reviewed the claims find no medical basis for them.

Sources

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    Wee problem with claim drinking urine cures diseases, Illawarra Mercury / AAP FactCheck