Medical toxicologists use chelation for cases of serious heavy metal poisoning, such as from industrial accidents.

FORBES: Health

The National Academy of Science has criticized the EPA on similar grounds, and leading toxicologists have said that the agency is out of step with the scientific consensus.

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The agency is using toxicologists, epidemiologists, microbiologists, forensic chemists and veterinary researchers to investigate whether the treats could be causing dogs to suffer Fanconi syndrome, a kidney disease that can cause the organ to shut down.

WSJ: Dog Treats Come Under FDA Scrunity