Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Bentonite clay has a long history of traditional use for various detoxification purposes, including attempts to treat or manage heavy metal poisoning. Its use stems from its unique physical and chemical properties—specifically, its high cation exchange capacity and large surface area, which allow it to adsorb various toxins, including some heavy metals, in laboratory settings. Traditional medicine systems and some alternative health communities advocate ingesting or applying bentonite clay to help “draw out” heavy metals from the body.

However, scientific validation for these uses in humans is limited. Most supporting evidence comes from in vitro (test tube) or animal studies. For example, some animal studies have demonstrated that bentonite can bind heavy metals such as lead or cadmium in the gastrointestinal tract, reducing their absorption and toxicity. There is also research supporting its use as an additive in animal feed to reduce heavy metal uptake. However, robust clinical trials in humans are lacking, and there are no established protocols for its use in treating heavy metal poisoning in humans. The FDA does not recognize bentonite as a treatment for heavy metal toxicity.

In summary, while there is a traditional basis and some preliminary scientific rationale for using bentonite clay to support heavy metal detoxification, evidence in humans is insufficient. Medical treatment for heavy metal poisoning should rely on established chelation therapies under professional supervision.

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