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Bentonite Clay

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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

May support digestive health and gut flora balance
Potential binding of toxins and heavy metals in the GI tract
Could help reduce bloating and digestive discomfort
Traditionally used for skin health and detoxification
May support immune function through gut health

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

Constipation or altered bowel movements
Nausea, vomiting, or abdominal discomfort in some individuals
Potential aluminium absorption concerns with chronic internal use

Interactions

May impair absorption of medications and supplements if taken simultaneously
Could interfere with nutrient bioavailability when taken with meals
Caution with iron supplements and other minerals due to binding effects

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.

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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Disclaimer: This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement, especially if you have existing health conditions or take medication.

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