Wrong. 20 years no ill effects. Very healthy. Blue = Big Pharma scare tactic → has been very effective in scaring the public away from a cheap effective health practice.
Maybe. But colloid atom clusters repel one another via surface electric charge and remain separated (that's what defines a colloid). I have long wondered if colloidal silver acts as a Phase Conjugate Mirror within the body, actually time-reversing unwanted biochemical reactions at the molecular level. I have no proof of this, but have long held the hypothesis as worth investigating.