I am so glad you guys pointed out. I just learned about Colloidal Silver by listening to Dr.Bob Beck - and soon after I saw Dr.Mercola's article. I had second thoughts when he warns about "contaminated versions" - but then i remembered that he sells products as well.Why would he promote Colloidal Silver - since there is no much profit in there? Afterall - he has to protect his own kind' profits.
Thank you for pointing out. It helps people like myself-new on the subject-especially if they trusted Dr. Mercola.