Table 2.

Claims about colloidal silver presented on the Website 1.

Claims	Comment	Category
“Colloidal silver works as the natures’ own antibiotic.”	There is no proof for the medical usefulness of colloidal silver as an antibiotic; colloidal silver is neither safe nor effective [18].	False
“Colloidal silver might be the best protective compound against the feared biological weapons.”	The claim is not scientifically valid [18].	False
“Unlike medical antibiotics, bacteria will never develop resistance to colloidal silver.”	Bacteria can develop resistance to AgNPs ([7], [8] [9],).	False
“Pharmaceutical industry is not interested in colloidal silver because silver is an element and can’t be patented, so it is worthless for it.”	There is no use for colloidal silver in the pharmaceutical industry, since its efficacy in oral use is not scientifically proven [18].	False
“Excess silver is removed from the body through natural ways.”	Excess silver is not efficiently removed. Silver has a long elimination half-life and therefore it accumulates in the human body [15].	Misleading
“Some tumors and warts can disappear with colloidal silver water.”	The claim is not scientifically valid [18].	False