About: http://webisa.webdatacommons.org/225069931

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	They may even contain relatively high levels of unwanted minerals, such as aluminum, lead, mercury or other contaminants.However, there is no proof to support their safety or effectiveness.
http://www.w3.org/ns/prov#wasQuotedFrom	colloidalminerals.org