The Environmental Protection Agency stated their conclusions quite clearly:
| At World Health Alliance we know that it is important to not only have a product that eliminates the bacteria from water, but is safe for human consumption. In water that is highly contaminated we recommend 2 drops in one liters of water. For low contamination 0ne drop per 2 liter of water. At 180 ug per drop we fall far below EPA, FDA or WHO guide lines of ten grams of silver over a life time or 1.09 milligrams daily in the human body. |
EPA CONCLUSIONS “Argyria has been described in syphilitic patients in poor health who were therapeutically dosed with a total of about 1 g of silver in the form of silver arsphenamine together with other toxic metals. There have been no reports of argyria or other toxic effects resulting from the exposure of healthy persons to silver.” “Although the deposition of silver is permanent, it is not associated with any adverse health effects. No pathologic changes or inflammatory reactions have been shown to result from silver deposition. Silver compounds have been employed for medical uses for centuries. In the nineteenth and early twentieth centuries, silver arsphenamine was used in the treatment of syphilis; more recently it has been used as an astringent in topical preparations. While argyria occurred more commonly before the development of antibiotics, it is now a rare occurrence.” “Taking one ounce of colloidal silver compounds daily, according to EPA guidelines, is well below the critical daily intake for the development of argyria.” “While it is our conclusion after four years of study that the risk of Argyria from the use of a quality isolated colloidal silver product is negligible, prudence suggests that actual silver intake be kept below 1.09 milligrams daily until scientific evidence demonstrates otherwise.”