Bentonite Clay
herbs
Bentonite clay is a naturally occurring aluminium silicate mineral commonly used for detoxification and digestive support. It is believed to bind to toxins and heavy metals in the gastrointestinal tract, though scientific evidence remains limited. Popular in traditional medicine and wellness practices, though internal use remains controversial.
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Benefits
Dosage
Typical Dose
0.5-1.5 grams daily
Upper Limit
3 grams daily
Timing
Take with water on an empty stomach or with meals; separate from medications by 2+ hours
Forms & Bioavailability
Powder
Variable; depends on particle size and hydration
Capsules
Lower; encapsulation reduces surface area contact
Suspension
Moderate; mixed with water for improved dispersion
Side Effects
Interactions
Research Summary
Limited peer-reviewed evidence supports bentonite clay's internal use for detoxification in humans. Most studies are in vitro or animal-based, showing theoretical binding capacity for toxins. Regulatory bodies including the FDA classify bentonite clay as generally recognised as safe (GRAS) for external use, but internal consumption lacks robust clinical trial support.
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The Bottom Line on Bentonite Clay
Bentonite Clay is moderately researched with promising but sometimes mixed evidence.It is most commonly used for may support digestive health and gut flora balance and potential binding of toxins and heavy metals in the gi tract. As with any supplement, individual results vary. Start with the lower end of the dosage range and assess for 4-8 weeks before adjusting.
About Our Research
This profile is compiled from peer-reviewed research published on PubMed, the NIH Office of Dietary Supplements, and established nutritional science databases. Dosages reflect clinically-studied amounts from human trials where available. We update profiles as new research emerges. This is not medical advice — consult a healthcare professional before supplementing.
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Goal Guides for Bentonite Clay
See how Bentonite Clay can help with specific health goals: