The text claims that toxic moisture-absorbing packets cannot be included in supplements sold in the United States.

The claim states that toxic moisture-absorbing packets cannot be included in supplements sold in the United States. The provided web evidence discusses potential toxicity from supplements due to various contaminants, but does not directly address the inclusion of toxic moisture-absorbing packets. These packets, typically silica gel, are generally considered non-toxic but are not meant to be ingested, which is why they are labeled as 'Do Not Eat'. There is no specific evidence found in the provided sources that confirms or refutes the inclusion of toxic packets in supplements. Standard regulations in the U.S. would typically prevent the inclusion of harmful substances in consumer products like supplements, supporting the plausibility of this claim. However, without concrete evidence directly addressing moisture-absorbing packets, the claim cannot be fully verified or refuted based on the evidence provided.