Harvard Health Letter

Taking silver could give you the blues

Silver is less toxic than some other metals...but do you look good in blue?

A reader wrote asking us whether there is "any legitimate reason" for taking colloidal silver. The short answer: No. The longer version follows.

You may remember from high school chemistry that colloids (pronounced KOL-oids) are mixtures in which one substance is divided into tiny particles and dispersed throughout another one. The particles are so small that they resist gravity and stay suspended. Colloidal silver consists of silver particles in water.

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