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• A binder is a substance that traps toxins in the gut so they leave in the stool instead of being reabsorbed. Most work best on an empty stomach, 1 hour before food and 2 hours away from medications.
• Activated charcoal is the oldest and best-proven binder. Bentonite clay, chlorella, modified citrus pectin, humic and fulvic acids, zeolite, and the prescription resin Questran (cholestyramine) complete the family.
• Diatomaceous earth and bentonite are distinct minerals.
Bentonite is a volcanic clay with animal evidence of metal binding;
Diatomaceous Earth is fossilized algae, mostly silica, with almost no human evidence as an internal binder.
• ZeoCharge is a single-ingredient product rather than a blend: purified, micronized clinoptilolite zeolite standardized to 94%, 5 grams per scoop, sold directly rather than through multi-level marketing (MLM).
• Zeolite’s reputation was tainted by MLM fraud, including a $12 million settlement over a liquid zeolite that was mostly water. Lab tests have detected lead, aluminum, and uranium in retail products.
• Chris Exley, a leading authority on aluminum toxicity, argues that ingesting an aluminum-based mineral to remove aluminum is unproven and irrational. Human trials are few, small, and inconclusive.
The liver dumps toxins into bile, which flows into the intestine, where much of the load is reabsorbed. Physicians call this loop enterohepatic recirculation, and it explains why some poisons linger for months after exposure ends. A binder interrupts the loop. It is a swallowed substance with enormous surface area or a strong surface charge that holds toxins in the gut until they exit in the stool. Since the trapped toxin never re-enters the blood, the body’s burden decreases with each pass.
Animals figured this out first. Parrots, elephants, and primates eat clay. Native cultures from the Andes to Australia dissolved dried clay in water at meals to guard against foodborne poisons, a practice I covered in my bentonite essay, Bentonite Clay: Ancient Remedy Meets Modern Medicine. The instinct was sound chemistry: negatively charged clay grabs positively charged poisons.
Timing matters because most binders cannot distinguish a nutrient from a toxin.
Charcoal grabs a heart pill as readily as a poison. The standard rule is an empty stomach, at least 1 hour before food and 2 hours away from drugs or supplements.
Zeolite sellers claim their mineral is selective, so they allow dosing with food.
Coseva, one of the spray makers, still tells customers to keep its product 4 hours away from mineral supplements.
When in doubt, separate the doses.
Activated charcoal is carbon that is heated and treated until it becomes a sponge of microscopic pores. Emergency rooms give it for drug overdoses because it adsorbs most medications and organic poisons, though it is ineffective against alcohols, lithium, and most metals. It is cheap and safe, aside from constipation and the occasional aspiration in a vomiting patient, and a jar belongs in every home for food poisoning.
Bentonite clay is weathered volcanic ash, primarily the mineral montmorillonite, which has a layered structure and a strong negative charge. Animal studies have shown that it binds aflatoxins, and pigs fed montmorillonite for 100 days had lower levels of lead in blood, brain, liver, bone, and kidney. My earlier essay covers the history, uses, and contamination problem with cheap brands.
Zeolite is a volcanic aluminosilicate with a rigid cage structure; the supplement form is clinoptilolite, and it gets its full hearing below.
Chlorella, a green alga whose cell walls bind metals in laboratory studies, is popular around dental amalgam removal. Modified citrus pectin, humic and fulvic acids, chitosan, and plain silica fill out the health-food aisle, each with bench data on binding and little human evidence.
The prescription mainstay of the family is Questran (cholestyramine), a resin designed to bind bile acids and lower cholesterol. Because many biotoxins ride the bile, mold-illness physicians repurposed it for mycotoxins decades ago, and it remains the workhorse of their protocols. It is also the clearest demonstration of the principle: bind what the bile keeps recycling, and the patient improves.
Readers keep asking whether diatomaceous earth is bentonite under another name. It is not.
Bentonite began as volcanic ash and became a swelling clay composed of layered aluminum silicate. Diatomaceous earth consists of the fossilized shells of diatoms, single-celled algae, and is 80 to 90% amorphous silica. One swells and exchanges ions; the other is a rigid, porous skeleton that acts as a microscopic filter.
Grade matters more with diatomaceous earth than with any other binder. Food grade contains less than 2% crystalline silica and appears on the US Food and Drug Administration (FDA) lists of substances added to food as a filtering and anti-caking agent. Pool grade is heat-treated, loaded with crystalline silica, and dangerous to inhale or ingest. Even food grade can irritate the lungs as dust, so keep your face out of the cloud when scooping. The specifications still allow up to 10 milligrams per kilogram each of arsenic and lead.
Do both bind metals and speed their exit from the body? Bentonite has the animal evidence cited above, plus decades of feed-industry use against aflatoxin. Diatomaceous earth binds metals in water filtration plants, but evidence that it does the same in the human intestine is close to nonexistent.
The one human trial I know of administered 750 milligrams daily for 8 weeks and measured cholesterol, which decreased. Nobody measured metals. Swallowed in food-grade form from a tested supplier, both are reasonably harmless. The detox marketing for diatomaceous earth has outpaced its science.
Zeolites form when volcanic ash reacts with water over geologic time. The result is a crystalline aluminosilicate honeycomb, a cage with a fixed negative charge that holds loosely bound sodium, calcium, and magnesium. When a positively charged element with higher affinity comes along, such as lead, mercury, cadmium, or cesium, the cage swaps its mineral for the metal and locks it inside. Industry uses zeolites to soften water, deodorize litter boxes, and capture radioactive cesium. Clinoptilolite became the supplement form because its silica-to-aluminum ratio is high, roughly 4 or 5 to 1, which makes the lattice resistant to acid. Sellers also point to a generally recognized as safe (GRAS) designation for certain food uses.
The human evidence: In 2009, Flowers and colleagues gave 22 people an activated clinoptilolite suspension. They reported increased urinary excretion of aluminum, antimony, arsenic, bismuth, cadmium, lead, mercury, nickel, and tin, peaking around day 4, with serum electrolytes unchanged. The study was small, and its authors had ties to the supplement industry.
In 2021, Austrian investigators showed that purified clinoptilolite reduced the gut absorption of ingested lead in healthy volunteers. That result indicates prevention of new uptake rather than removal of stored metal. A Croatian group following patients on a proprietary zeolite reported something more troubling. Blood lead rose during short-term use and fell only after years of continued dosing, while aluminum and nickel were lower at 4 years. The authors admitted that leakage of lead from the product itself was a possible explanation for the early rise.
ZeoCharge, from a company called Zeolite Labs, is a single-ingredient product rather than a proprietary binder blend. The label reads: supercharged zeolite powder standardized to contain 94% purified clinoptilolite, 5 grams per scoop, 30 scoops per container, about $59. The proprietary part is the processing. A cleaning step removes metals that came from the mine. Micronization then produces a range of particle sizes, and remineralization loads the cages with benign minerals instead of contaminants. The company says the finished powder is third-party tested and sells directly rather than through a downline.
The marketing goes beyond the data. The company advertises that its product lowered tissue levels of 15 toxic metals, but no peer-reviewed human trial of ZeoCharge has surfaced in my search. Its answer to the aluminum question cites researcher Karl Hecht. The higher the lattice’s silica content, the harder it is for aluminum to escape, and clinoptilolite’s silica content is among the highest. The purification story is plausible chemistry and the right idea. It deserves the same proof I demand from Pharma.
Zeolite’s bad reputation traces to a company called Waiora. Its Natural Cellular Defense, a liquid zeolite sold through multi-level marketing for over $50 in a small bottle, was pitched to the gravely ill. In 2010, distributors paid for independent lab tests. They found roughly 150 milligrams of zeolite per bottle, compared with the 2,400 milligrams printed on the label, and a second lab found even less. The company dismissed the results, quietly switched manufacturers, and was hit with a 2012 class action in Florida alleging fraud and negligence. It settled for $12 million plus 3 replacement bottles for each of nearly 80,000 class members, with the lawyers taking the largest share.
The sales model outlasted the scandal. The category is crowded today with nano-zeolite sprays sold through distributor networks. Coseva’s Advanced TRS and Touchstone Essentials’ Pure Body Extra lead the category, and their websites attack each other with dueling white papers. Touchstone was founded in 2012 by Eddie Stone, a 30-year network-marketing veteran, and industry reviewers link his history to Waiora. Toby Rogers, the economist who writes on vaccine injury, publicly asked Exley to examine Advanced TRS because thousands of parents were spraying it on autistic children.
Comment: MLM is the ideal vehicle for a product whose benefit is invisible. The customer feels nothing, the seller needs the sale to make rent, and every testimonial doubles as a recruitment pitch. When the witness profits from his testimony, I discount it to zero. Pharma plays the same game with better lawyers; the drug rep and the paid key opinion leader are a downline with credentials.
Christopher Exley has spent his career, since 1984, on a single question. Why is the third most abundant element in the Earth’s crust toxic to nearly all life? His doctoral thesis examined aluminum toxicity in Atlantic salmon, and he held a Royal Society research fellowship. He led the bioinorganic chemistry laboratory at Keele University until 2021 and measured aluminum levels in human brains along the way. When a man like this speaks about aluminum chemistry, I listen.
His zeolite argument is simple. Zeolite is an aluminosilicate, an aluminum-based material, and stomach acid degrades part of its lattice, freeing aluminum. Swallowing aluminum to remove aluminum struck him as absurd on its face. When readers pressed him, he asked which naturally occurring zeolite lacks aluminum and which supplement had removed aluminum from a human being in a clinical trial. Nobody produced either. He added that he was “prepared to be proven wrong by the appropriate peer-reviewed published clinical trial.” None has appeared.
Exley’s alternative is silicic acid, dissolved silicon. His group spent years testing silicon supplements. Nothing matched plain silicon-rich mineral water from the grocery store (Fiji brand or Volvic), which binds aluminum in the body and helps remove it through the kidneys. He also poured cold water on EDTA (ethylenediaminetetraacetic acid) chelation. Skeptical clinicians sent him their infusion bottles, and he measured 50 to 250 micrograms of aluminum contaminating each one. The rising urinary aluminum that chelation clinics celebrate, in his measurements, was aluminum the clinics had infused themselves.
Comment: Another problem with EDTA is that it is a weak-to-intermediate-strength chelator that tends to capture heavy metals and transport them elsewhere in the body rather than eliminating them. The king of the chelators is the ultra-strong NBMI, repurposed, promoted, and tested with $50 million in animal and human studies by Boyd Haley. See my post about that here.
Exley holds detox products to the same standard I hold Pharma to, and I respect him for it. His remedy costs a few dollars per bottle, has no downline, and harms no one. When a man with his knowledge drinks mineral water instead of swallowing zeolite, that is data.
In 2015, Mike Adams of Natural News tested retail zeolite products by mass spectrometry and published the results after one manufacturer threatened to sue him. He reported aluminum at 24,000 to 30,000 parts per million, lead near 27 parts per million, arsenic at 4 to 5, and uranium at 4 to 6. Against his personal supplement limit of 0.25 parts per million for lead, the products came in 100-fold over. In his water experiments, the zeolites adsorbed cesium strongly while raising, instead of lowering, the lead, cadmium, and arsenic in the test water. His conclusion was that zeolites excel at catching cesium and perform poorly at the job advertised on the label.
The industry answer has two parts. First, metals locked within a zeolite lattice are not bioavailable. The crystal passes through the gut like a small stone, and gastric leach tests on quality products show that nothing escapes into acid. Second, purity and processing decide everything. A washed, tested clinoptilolite arrives with empty cages, whereas a raw micronized rock arrives full, and grinding might free metals that an intact granule would have held. Both answers concede the ground that matters: with a dirty product, the skeptics are right, and the user swallows metal daily.
The paradoxical-harm theory splits into two claims. The weak claim, that contaminated or degraded zeolites add to the body’s metal load, is supported by the Adams assays and the transient rise in lead levels in the Croatian trial. The strong claim, that even clean zeolite worsens toxicity, has no direct evidence and conflicts with the Austrian lead-uptake trial. Between them lies the defensible position: clean, verified clinoptilolite is a mild net binder in the gut, and the dramatic cellular detox claims are sales copy.
Charcoal for acute ingestions is settled medicine. Bentonite has tradition, animal data, and a contamination caveat, so buy tested brands, as I wrote before. Questran binds recirculating biotoxins and requires a prescription and a physician who understands why he is writing it. Diatomaceous earth is a fine insect powder and a cheap silica source with a weak binder claim. Zeolite is the interesting one: plausible chemistry, two encouraging human trials, one worrisome trial, and a sales culture that has earned every ounce of suspicion aimed at it.
For readers who want zeolite anyway, the checklist is short. Buy powder, since the liquid category was fraudulent. Demand a third-party assay of the finished lot covering lead, aluminum, arsenic, and uranium, and walk away from any company that responds with testimonials. Avoid anything sold through a recruitment chain. Keep it away from food and medications despite the selectivity claims, drink plenty of water, and take breaks after a few weeks of use.
Comment: I have heavy metal toxicity, and I chose bentonite first, as I wrote in my clay essay. I keep zeolite off my shelf until a maker provides the assay for the finished lot and a published trial. The chemistry attracts me; the sales culture repels me.
Buy the charcoal, test the clay, drink Fiji silica water, and make every zeolite seller show his assay before he touches your gut. The rocks are older than the rackets. Earth was binding poisons when the first sick animal ate clay on instinct, and the fraud arrived only with the compensation plan. The mineral deserves better science, and the sick deserve better salesmen.
Flowers JL, Lonky SA, Deitsch EJ. “Clinical evidence supporting the use of an activated clinoptilolite suspension as an agent to increase urinary excretion of toxic heavy metals.” Nutrition and Dietary Supplements. 2009. (The 22-subject urinary excretion study.)
Samekova K, et al. “Concomitant oral intake of purified clinoptilolite tuff (G-PUR) reduces enteral lead uptake in healthy humans.” Scientific Reports. 2021. (Purified clinoptilolite cut gut lead absorption.)
Kraljevic Pavelic S, et al. “Critical review on zeolite clinoptilolite safety and medical applications in vivo.”Frontiers in Pharmacology. 2018. (The safety review.)
Kraljevic Pavelic S, et al. “Clinical evaluation of a defined zeolite-clinoptilolite supplementation effect on the selected blood parameters of patients.” Frontiers in Medicine. 2022. (The trial with the early blood lead rise.)
Exley C. “Detox or Not Detox.” Substack, 2022. (The EDTA contamination findings and the zeolite exchange in the comments.)
BehindMLM. “Waiora settle water product lawsuit for $12M.” (The Natural Cellular Defense fraud settlement.)
Adams M. “Zeolites contain high levels of lead and aluminum: Health Ranger publishes lab test results.”Natural News, 2015. (The retail product assays.)
Zeolite Labs. ZeoCharge product page. (The label, dose, and processing claims.)
FDA. “FDA warns consumers not to use Best Bentonite Clay.” 2016. (Lead contamination in a retail clay.)
“Bentonite Clay: Ancient Remedy Meets Modern Medicine.” Surviving Healthcare. (The companion essay on clay.)
These substances confused the hell out of me until I did this research. I hope this will help you get it straight. If this was beneficial, please flip me a paid subscription at the link just below.
