Potential Arsenic Toxicity from Kelp Supplements
Omschrijving
Medicinal use of herbal dietary supplements is a potential cause of inadvertent arsenic toxicity. To evaluate the extent of arsenic contamination in commercially available kelp, Amster et al. (p. 606) analyzed nine samples randomly obtained from local health food stores. Eight of the nine samples showed detectable levels of arsenic higher than the Food and Drug Administration tolerance level of 2 ppm. None of the supplements contained information regarding the possibility of contamination with arsenic or other heavy metals. The authors recommend that clinicians should inquire about use of dietary supplements as a part of the patient's medical history.
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