Clay: Zeolite And Bentonite for Binding and Detoxification

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Formed from volcanic ash, zeolite and bentonite clays have long been valued for their ability to bind and remove impurities from the body. Zeolite develops when ash mixes with seawater, while bentonite forms in freshwater, each carrying a natural negative charge that attracts and traps positively charged particles such as toxins and heavy metals. These properties have made them popular for supporting detoxification, digestive balance, and skin health. In this article, we examine how zeolite and bentonite may support cleansing, gut health, and overall well-being.

What Are Zeolite and Bentonite?

Zeolite and bentonite clay are natural substances formed from volcanic ash and long valued for their unique properties. Zeolite develops when volcanic ash meets seawater, while bentonite clay forms when ash interacts with fresh water. Both carry a porous structure with a natural negative charge, allowing them to attract and bind positively charged particles, including certain toxins and heavy metals.

Because of this binding ability, these minerals are often used in supplements marketed for detoxification. The idea is that they can help the body clear unwanted substances, which may, in turn, support overall health. Some early research, along with long-standing traditional use, suggests potential in this area, though the science is still developing. ~PMC10221298 

Zeolite, particularly the form known as clinoptilolite, and bentonite clay have also been studied for their role in digestive health. Their absorbent nature allows them to interact with water and molecules in the gut, which may help with digestive balance. Preliminary studies and traditional practices indicate possible benefits in easing diarrhea and supporting regularity. Evidence for relief of indigestion or heartburn is less clear, and more research is needed before drawing firm conclusions.

Beyond digestion and detoxification, these minerals may also offer antimicrobial effects. Early findings suggest they could help limit the growth of harmful bacteria in the gut, which might support a healthier balance of gut microflora and, in turn, benefit immune function. ~PMC5632318 

That said, while interest in zeolite and bentonite clay is growing, scientific evidence is still limited, particularly regarding their long-term safety and effectiveness. If you are considering adding them to your routine, it’s best to discuss it with a healthcare professional, especially if you have ongoing health conditions or are taking medications.

Comparing Zeolite vs. Bentonite Clay

Zeolite clay and bentonite clay, when used as oral supplements, cater to different health-related purposes due to their unique properties. Zeolite clay, composed of hydrated aluminosilicates, has a crystalline structure that allows for selective adsorption of molecules. This makes it particularly effective for detoxification supplements, where it can trap and remove heavy metals and other toxins from the body. Additionally, zeolite may help in managing gastrointestinal health by absorbing excess fluids and toxins that contribute to issues such as diarrhea. ~PMC12145127 

Following zeolite, bentonite clay, which contains a mix of minerals including montmorillonite, forms a gel-like substance when hydrated and is used widely in digestive detox programs. Its binding capabilities allow it to adhere to and help remove unwanted substances in the gut. This broad-spectrum binding is also thought to soothe the digestive tract and aid in nutrient absorption, though more scientific studies are needed to fully validate these benefits. Both clays are marketed for their detoxifying properties, but zeolite is often chosen for targeted detoxification due to its selectivity, while bentonite is preferred for general digestive cleansing and health support.

What Are the Benefits of Zeolite Clay?

  • Detoxification: Zeolite is a natural mineral studied for its ability to bind and exchange ions, giving it the capacity to interact with water, polar molecules, and potentially harmful substances. The most widely researched form, clinoptilolite (ZC), has been noted for its detoxification, antioxidant, and anti-inflammatory properties. Its porous structure allows it to trap and exchange compounds, and modified forms such as micronized or tribomechanically activated clinoptilolite (M-ZC, TMAZ, PMA-ZC) may enhance these effects. Beyond detoxification, research suggests possible benefits for immune function, brain health, and overall well-being. While findings are promising, the precise biological mechanisms and long-term safety of zeolite in humans remain areas of ongoing investigation. ~PMC6277462, ~PMC6515299
  • Digestive Health: Due to its porous, absorbent structure, zeolite has been traditionally used to support digestive balance. Its ability to interact with water and various compounds in the gut is well recognized, though clinical evidence for specific benefits such as relief from diarrhea, indigestion, or heartburn remains limited and requires further research. ~PMC6515299

Taking zeolite supplements helped strengthen the gut lining, reducing levels of zonulin, a marker of gut permeability, and may also help reduce symptoms like nausea and diarrhea.

  • Antimicrobial Properties: Zeolite and Bentonite clay may possess antimicrobial properties, inhibiting the growth of harmful bacteria and pathogens in the gut, promoting a healthier balance of gut microflora, and supporting immune function. ~PMID: 29083147
  • Potential Immune Support: By promoting detoxification and maintaining gut health, Zeolite and Bentonite clay supplements may indirectly support immune function, although further research is needed to confirm this effect. ~PMID: 15310086
  • Environmental Toxin Protection: Some evidence suggests that Zeolite and Bentonite clay may help protect against environmental toxins by trapping and neutralizing them before they are absorbed into the body. ~PMC12145127 
  • Skin Health: On the skin, zeolite clay is valued for its soothing and purifying effects. Its natural absorbent properties help draw out excess oil, clear pores, and promote a healthier complexion, making it a popular ingredient in face masks and cleansers.
  • Alkalizing Properties: Zeolite and Bentonite clay supplements may help balance pH levels in the body, possibly reducing acidity and promoting a more alkaline environment, which is believed to support overall health.
  • Gut Barrier Function: Zeolite may support digestive health by strengthening the gut barrier and reducing inflammation. In one study, twelve weeks of supplementation was linked to improved intestinal wall integrity, as shown by decreased zonulin levels, along with mild anti-inflammatory effects. While these findings are encouraging, more research is needed to confirm its role in human digestive health.~PMC5632318, ~PMC4617723
  • Nutrient Absorption: By binding to toxins and impurities in the digestive tract, Zeolite and Bentonite clay supplements may improve nutrient absorption, ensuring that essential vitamins, minerals, and other nutrients are properly assimilated by the body.
  • Gastrointestinal Comfort: Some people report relief from symptoms of bloating, gas, and discomfort after taking Zeolite or Bentonite clay supplements, suggesting potential benefits for gastrointestinal comfort and overall health. ~PMC10914565
  • Environmental Detoxification: Zeolite and Bentonite clay have been used in environmental cleanup efforts to absorb and neutralize contaminants in soil and water, indicating their potential role in environmental detoxification beyond human health benefits. ~PMC9416071

The effects of clinoptilolite(a type of zeolite) on the human body have been widely studied. These effects include detoxification, antioxidant properties, releasing important trace elements, and improving the balance of gut bacteria. These benefits have been observed in both animals and humans when clinoptilolite is added to their regular diet in powdered form.

What Are the Benefits of Bentonite Clay?

  • Detoxification: Bentonite supplements are known for their ability to absorb toxins, heavy metals, and other impurities from the body, aiding in overall detoxification. ~PMC6989347
  • Digestive Health: Bentonite clay has long been used to support digestive health, thanks to its porous structure that absorbs excess moisture in the gut. Research suggests it may ease diarrhea, promote regularity, and help regulate bowel habits in constipation-predominant IBS. Animal studies indicate it can improve intestinal integrity and enzyme activity without interfering with mineral absorption. In addition, bentonite may support a healthier balance of gut microflora by limiting harmful bacteria, pointing to its broader role in maintaining digestive balance and resilience. ~PMC5632318
  • Wound Healing: The topical application of Bentonite clay may aid in wound healing by promoting the removal of dead tissue and bacteria from the wound site, helping to prevent infection and accelerate the healing process. A study assessed the use of bentonite clay for skin regeneration in minipigs, particularly for burn wounds. ~PMC9677418
  • Skin and Hair: Bentonite clay has been more extensively studied for therapeutic skin applications. Research shows it can ease allergic contact dermatitis from poison ivy and poison oak, improve chronic hand dermatitis, and act more quickly than calendula in relieving diaper rash. It may also reduce the skin’s absorption of certain toxins, enhance the effectiveness of sunscreens, and support the healing of skin lesions. Traditionally used as a natural hair cleanser and softener, bentonite has also been linked to increased hair growth in animal studies, though evidence in humans remains limited. ~PMC5632318 
  • Detoxification of Environmental Toxins: Bentonite clay has been used in various environmental applications, such as detoxifying soil and water contaminated with heavy metals and other pollutants. Its ability to absorb toxins makes it effective in these cleanup efforts. ~PMID: 36418828

Are Zeolite and Bentonite Clays Safe?

Zeolite and Bentonite clays are safe for consumption and topical use when used appropriately. These natural substances have been used for centuries in traditional medicine and are recognized for their low toxicity profiles. Zeolite and Bentonite clays are not absorbed by the body; instead, they pass through the digestive tract, carrying toxins and impurities with them. However, it’s essential to use high-quality, food-grade Zeolite and Bentonite clays from reputable sources to ensure purity and safety. Overall, when used as directed, Zeolite and Bentonite clays offer a safe and natural way to support detoxification, digestion, and overall health.

Medication Interactions with Zeolite and Bentonite Clays

  • Medications for Chronic Conditions: Zeolite and Bentonite clays may interact with medications used to treat chronic conditions such as high blood pressure, diabetes, or thyroid disorders. These clays have the potential to bind to medications in the digestive tract, reducing their absorption and effectiveness.
  • Antibiotics: Zeolite and Bentonite clays may interfere with the absorption of antibiotics, which could reduce their effectiveness in treating bacterial infections. It’s advisable to take antibiotics and clay supplements at least two hours apart to minimize this interaction.
  • Other Oral Medications: Any oral medication taken concurrently with Zeolite and Bentonite clays may have reduced absorption due to the clays’ binding properties. This includes over-the-counter and prescription medications, vitamins, and supplements.
  • Topical Medications: While not a direct interaction, using Zeolite or Bentonite clay topically may affect the absorption or effectiveness of certain topical medications. It’s recommended to consult with a healthcare professional before applying clay products to areas where topical medications are used.
  • Contraceptives: There is a theoretical risk that Zeolite and Bentonite clays could interfere with the absorption of oral contraceptives, reducing their effectiveness in preventing pregnancy. It’s crucial for persons using oral contraceptives to discuss the potential interaction with their healthcare provider.
  • Thyroid Medication (e.g., Levothyroxine): Zeolite and Bentonite clays may interfere with the absorption of thyroid medication, such as Levothyroxine, reducing its effectiveness in managing hypothyroidism. It’s important for persons taking thyroid medication to consult with their healthcare provider before using clay supplements to avoid potential interactions, and adjustments to timing or dosage may be necessary.

Supplement Interactions with Zeolite and Bentonite Clays

  • Multivitamins and Minerals: Zeolite and Bentonite clays may interact with multivitamins and mineral supplements by binding to certain vitamins and minerals in the digestive tract, possibly reducing their absorption and effectiveness.
  • Calcium Supplements: Similar to multivitamins, calcium supplements may have reduced absorption when taken with Zeolite and Bentonite clays, which could impact bone health and other calcium-dependent bodily functions.
  • Iron Supplements: Zeolite and Bentonite clays may interfere with the absorption of iron supplements, leading to reduced effectiveness in addressing iron deficiency anemia.
  • Magnesium Supplements: Bentonite and Zeolite clays might bind to magnesium supplements, lowering their absorption and may cause symptoms of magnesium deficiency such as muscle cramps and fatigue.
  • Probiotics: There is a theoretical risk that Zeolite and Bentonite clays could adsorb probiotics, reducing their effectiveness in supporting gut health and digestion. It’s advisable to take probiotics separately from clay supplements to avoid this interaction.
  • Herbal Supplements: Certain herbal supplements, particularly those with high bioavailability or those containing minerals, may have reduced absorption when taken concurrently with Zeolite and Bentonite clays. It’s recommended to consult with a healthcare professional before combining herbal supplements with clay products.

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Charcoal Plus Binder by Designs for Health

Charcoal Plus Binder is a synergistic formula to help support the body’s normal clearance of microbes, environmental toxins, and heavy metals.* It also may help support elimination pathways and healthy detoxification in the gastrointestinal tract.* The active ingredients in this formula are known as binders, which are molecules that exhibit adsorptive properties to help support the elimination of certain toxins.*

Charcoal Plus Binder provides a clinically relevant amount of activated charcoal from coconut shells to help promote normal detoxification.* It also features targeted amounts of zeolite as G-PUR® standardized to contain 70% clinoptilolite and organic chlorella (Chlorella vulgaris), with broken cell walls to support bioavailability and help support toxin elimination and antioxidative status.* This targeted formula may help support normal detoxification, healthy liver function, antioxidative status, and cellular health.* Suggested Use: Take 2 softgels per day or as recommended by your health-care practitioner.

It is recommended that Charcoal Plus Binder be taken 2 hours before or after any medications or other supplements.


Amount Per 2 Softgel Serving
Activated Charcoal Powder … 400mg
(from coconut shells)
Zeolite (G-PUR®) … 400 mg
(standardized to contain 70% clinoptilolite)
Organic Chlorella (broken cell wall) … 250 mg
(Chlorella vulgaris) (whole plant)


Medi-Clay-FX™ by Premier Research Labs

> Premier calcium bentonite clay
> Provides a rare source of calcium bentonite clay that helps promote detoxification*
> Unique smectite form exhibits powerful absorptive detoxification properties*

Medi-Clay-FX™ provides a rare source of calcium bentonite clay that helps promote detoxification. It contains a unique source of bentonite clay called calcium aluminosilicate. Consuming clay internally has a long history of use with outstanding, health-promoting effects and has been used by various ancient cultures.*

Unlike most sodium-based bentonites, Medi-Clay-FX™ contains a rare, freshwater-based bentonite believed to be the only known bentonite sourced from the site of an ancient underwater volcanic eruption that was flushed with fresh water for millions of years. This particularly unique smectite form of bentonite clay exhibits powerful absorptive detoxification properties.*

At the outer surface of this clay’s distinctive crystalline structure is a negative electrical charge which characterizes Medi-Clay-FX’s highly effective absorptive qualities. When these negatively charged clay molecules meet undesirable positively charged particles, the clay’s ions are exchanged with the positive ions of the undesirable molecule. Once the clay molecules’ charges are electrically satisfied, the clay’s absorptive properties, which have a crystal-like composition, act like a sponge and pull these undesirable substances deep into the clay’s inner structure, trapping them until the body is able to eliminate them.

Due to the clay’s vast interactive surface area, two capsules, taken 3 times daily (with 4 oz of water)are recommended for beneficial results. It is not necessary to hydrate or soak the clay before use.
Vegan
Heavy Metal Tested

Suggested Use: Take 1 capsule, 3 times daily with 4 oz. or more of purified water.

Amount Per 1 Capsule Serving
Calcium Bentonite Clay … 450mg


Food First!

Although this article discusses supplements in detail, don’t forget that we are absolutely committed to the “Food First” approach to nutrition. When it comes to your health, the totality of your eating habits far surpasses the impact of individual nutrients or any single supplement you consume. Even though this article doesn’t delve into the broader picture of your overall diet, it’s crucial to keep this element at the forefront of our minds. Food is one of the “Pillars of Health”. Your food needs to provide all the vitamins, minerals, fiber, and phytochemicals to nourish your body systems down to the cellular level.

Food choices, rather than supplements, are the most critical factors for a healthy gut microbiome. These trillions of tiny inhabitants in your gut affect your brain waves; they orchestrate your immune system. They possess the power to create molecules that can switch genes on or off and are even capable of synthesizing neurotransmitters. Opting for organic foods and steering clear of plastic packaging (including those labeled BPA-free) is a smart move to limit toxin exposure. The sum of all these parts leads to a powerful conclusion: the ultimate key to your health lies in the quality and balance of the food you consume. Supplements are secondary.

To Sum It Up

Incorporating Zeolite and Bentonite clay supplements into your daily routine may provide a range of health benefits, from supporting natural detoxification processes and digestive balance to promoting healthy skin and overall well-being. These mineral-rich clays are known for their ability to bind and remove toxins, heavy metals, and other impurities from the body. For those looking to gently support detoxification, aid digestion, or enhance skin vitality, Zeolite and Bentonite clays offer a natural and grounded approach to wellness.


This Article is Not a Substitute for Medical Advice

This information is provided for educational purposes only and is not a substitute for medical advice. Supplement Sciences does not provide medical care and cannot ensure the safety or effectiveness of any product for your personal use. Always consult your physician before starting any supplement, especially if you are pregnant, breastfeeding, or managing a serious health condition such as cancer, liver disease, or kidney disease. Dietary supplements are not designed to diagnose, treat, cure, or prevent any disease.


* These statements have not been evaluated by the Food and Drug Administration.

About the Author

Stephanie Figon, MS, RDN, LD

Creator of Supplement Sciences and NutriScape.NET. As a dietitian since 1992, Steph has had experiences in consulting, 15 years in clinical, and has operated a private practice nutrition counseling office for since 2011. Log in to comment and save this article on your board or send your comments to reviews@supplement-sciences.com

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