FDA Warns Consumers About Dietary Supplement for Metal Chelation Therapy

The FDA issued a warning to consumers not to purchase or to use Thorne Research’s Captomer or Captomer-250, marketed as a dietary supplement for heavy metal toxicity and heavy metal chelation therapy. These products list DMSA (meso-2, 3-dimercaptosuccinic acid) as an active ingredient, which is contained in an FDA-approved prescription product indicated for the treatment of lead poisoning in children.


The FDA advises consumers to avoid all products offered over-the-counter (OTC) for chelation or detoxification. There are no FDA-approved OTC chelation products. FDA-approved chelating agents are available by prescription only and are approved for use in specific indications such as lead poisoning and iron overload.


Procedures involving chelation agents carry significant risks and should be performed only under medical supervision.


The company has received several adverse event reports associated with these products. Thorne Research has agreed to voluntarily recall the products.


See the Recall