尽管制造商宣称其有各种益处，但含有胶体银的补充剂不被认为是安全或有效的。人们尚不了解银在体内有何用途。它不是一种必需的矿物质。
胶体银产品是由悬浮在液体中的微小银颗粒制成的，与珠宝、补牙和银器中使用的金属类型相同。
胶体银补充剂的制造商经常宣称银可以增强免疫系统、抵抗感染和治疗癌症，从而推广他们的产品。
然而，著名的医学杂志上并没有发表过评估这些健康主张的可靠科学研究。美国食品药品监督管理局和联邦贸易委员会已对几家公司采取了行动，禁止其做出未经证实的健康声明。
口服银后，银会在体内积聚。经过几个月到几年的时间，这会导致您的皮肤、眼睛、内脏、指甲和牙龈出现蓝灰色的变色。医生称这种情况为银中毒。它通常是永久性的。在极少数情况下，高剂量的胶体银可引起严重的副作用，如癫痫发作和器官损伤。
胶体银还可能与处方药发生相互作用，包括青霉胺（Cuprimine, Depen）、喹诺酮类抗生素、四环素和左甲状腺素（Unithroid, Levoxyl, Synthroid）。
Jan. 11, 2022
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