銀離子同其他重金屬及其離子其實有毒，是可以殺死細菌的，但是消滅病毒就未有太多文獻資料。而食了「銀」產品，就可以預防病毒？分分鐘濃度高到自己中毒死，都未完全消滅病毒。到今日為止只是發現到銀納米粒子，有可能對抗到病毒，但是詳細都未證實。
www.thestandnews.com/personal/一分鐘化學-銀離子殺毒/
Potential toxicology considerations of nanosilver particles (NSPs), both in vitro (Latin for within the glass) and in vivo (Latin for within the living), are also addressed...
NSPs are also an antiviral agent against HIV-1, hepatitis B virus, respiratory syncytial virus, herpes simplex virus type 1, and monkeypox virus. It has been observed that NSPs have higher antiviral activity than silver ions.
There is a limited number of well-controlled studies on the potential toxicities of nanosilver, though these studies tend to suggest that NSPs can induce toxicity in living beings. It should be noted that in vitro conditions are drastically different from in vivo conditions; however, longer-term studies and assessment of NSP toxicity must be conducted so that NSP exposure does not exceed toxic levels.
Ge, L. P. & Li, Q.T. (2014). Nanosilver particles in medical applications: synthesis, performance, and toxicity.
International Journal of Nanomedicine, 9, 2399–2407. Retrieved from
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4037247/
FDA is issuing a final rule establishing that all OTC drug products containing colloidal silver ingredients or silver salts for internal or external use are not generally recognized as safe and effective and are misbranded (貼錯標簽). FDA is issuing this final rule because many OTC drug products containing colloidal silver ingredients or silver salts are being marketed for numerous serious disease conditions and FDA is not aware of any substantial scientific evidence that supports the use of OTC colloidal silver ingredients or silver salts for these disease conditions.
No authors listed (1999).Over-the-counter drug products containing colloidal silver ingredients or silver salts. Department of Health and Human Services (HHS), Public Health Service (PHS), Food and Drug Administration (FDA). Final rule.
Federal Register. Retrieved from
https://www.ncbi.nlm.nih.gov/pubmed/10558603
