The Green Stones After a Liver Flush: What the Evidence Shows

Search for a liver flush and you will find photographs. Hundreds of them, posted by people who did the protocol, looked in the toilet the next morning and found dozens of soft green pellets. Some count them. Some line them up on tissue paper. The reaction is almost always the same: look what came out of me.

It is the single most discussed thing about a liver cleanse, and it is the reason a great many people do one. It is also the thing we are asked about most often. So here is a straight answer, including the part that is not what you may have been told.

What people are usually told

The folk explanation, repeated across the internet and in a good deal of printed material, is that these are gallstones — cholesterol stones that had been sitting in the liver and gallbladder, released by the oil and flushed out by the salt. The count becomes a score. More stones, more successful cleanse.

It is a satisfying story. You did something difficult, and here is the physical evidence that it worked. Very little else in health gives you that.

What happened in 2005

In April 2005, a short letter appeared in The Lancet, written by Christiane Sies and Jeff Brooker, working in clinical chemistry in New Zealand. A patient had done an olive-oil-and-citrus flush and, like everybody else, passed a quantity of green pellets. Unlike everybody else, she brought them in.

So they analysed them.

The result: the material contained no cholesterol, no bilirubin and no calcium. Those three things are what gallstones are made of — cholesterol stones are mostly cholesterol, pigment stones are mostly bilirubin salts, and most have some calcium. None of it was there.

What the material did contain was fatty acids, and analysis indicated these had combined with potassium to form a soap. The fatty acids came from the olive oil. The potassium came from the citrus juice. Both were drunk, in quantity, a few hours earlier.

In other words, the pellets were not brought out of the liver by the flush. They were made during the flush, in the gut, from the ingredients of the flush.

The letter also reported something that settles the matter: the same patient had imaging before and after. Her actual gallstones were still there, unchanged.

Why the chemistry makes sense

This is not an exotic reaction. Soap is what you get when a fat meets an alkali — it is called saponification, and it is how soap has been made for several thousand years. Fats from olive oil, alkali metal ions from citrus juice, warmth, and a few hours in a digestive tract that is also full of bile and fatty acids. Something soap-like forming is not surprising. It would be more surprising if it did not.

The green colour, which is the part people find most convincing, comes from bile pigment staining the material as it passes. Bile is green. Anything travelling through in bulk picks it up.

And the sheer number — dozens, sometimes more — is exactly what you would expect. You drank roughly 175 ml of oil. That is a great deal of raw material. A real gallbladder does not hold sixty stones.

The simple test you can do yourself

You do not need a laboratory to see the difference.

A gallstone is hard. It is a mineral-and-cholesterol concretion, it has weight, and it does not deform between your fingers. Most sink in water.

What comes out of a flush is soft. It crumbles under light pressure, it has the texture of wax or soap, and it floats — which is why people describe them as "floating stones", a phrase that ought to have raised a question earlier than it did. If you were to dry one out, it would shrink and render down to oil.

What this does and does not mean

Let us be careful here, because it would be easy to overcorrect.

It does mean that a cleanse is not a way of removing gallstones, and that anybody telling you it avoids gallbladder surgery is telling you something the evidence does not support. If you have diagnosed gallstones, that is a conversation with your doctor. Stones can and do cause serious problems — inflammation of the gallbladder, blocked ducts, pancreatitis — and those are medical emergencies, not things to manage with a kitchen protocol.

It does not mean that people are imagining what they feel afterwards. Many report better digestion, steadier energy, lighter sleep in the following weeks. A cleanse in the naturopathy tradition is a structured pause: a day without food, a night of disrupted routine, and then a deliberate re-entry with juice and light meals. People who go to a camp get three days away from their ordinary habits with other people doing the same thing. Whatever you think of the mechanism, that is not nothing, and it is not what the green pellets are evidence of.

The honest position is that the value of the practice and the story about the stones were never the same claim, and only one of them has been tested.

Why we publish this

A reasonable question: why would the people who run Cleansing Therapy camps put this on their own website?

Three reasons.

The first is simple. It is true, and it has been in the public record since 2005. Anyone who reads around the subject for twenty minutes will find it. If they find it somewhere else, they will conclude that we either did not know — which would be worse — or knew and chose not to mention it. Neither is a position the people who define a protocol should be in.

The second is that the false version is doing real harm. Somebody with genuine gallstones, in genuine pain, who has been told a flush will clear them, may wait. That delay is where the danger sits, and it is caused precisely by the confident version of this story.

The third is that we would rather be judged on what is defensible. Everything we say about this protocol should survive being checked by a sceptical reader with a search engine. That is a higher bar than most of this industry sets for itself, and it is the only one worth setting.

So what is worth measuring?

If the pellets are not the measure, what is?

The ordinary things, over the following weeks. Whether you are sleeping through. Whether your digestion has settled. Whether your energy through the afternoon is steadier than it was. Whether the eating habits you reset during the cleanse have held — because for most people that is the part that actually changes anything, and it is the part nobody photographs.

None of that photographs well. All of it matters more.

If you want to know what a cleanse involves before deciding, the full protocol is published here, and who it suits and who should speak to a doctor first is published too. If you would rather ask a person, we answer every message.