Silver Biotics claims to help boost the immune system and ward off minor illnesses such as the common cold, as detailed on American Biotech Labs. There is no scientific evidence to support the health benefits of Silver Biotics as of 2015, notes Mayo Clinic. Colloidal silver is not considered safe for consumption as a supplement.
Silver Biotics contains de-ionized water with 10 parts per million of purified silver. A 1-teaspoon serving provides 50 micrograms of silver, according to American Biotech Labs. The company recommends that adults swallow 1 teaspoon of Silver Biotics daily for immune support.
In 1999, the FDA warned that colloidal silver is not safe, and is ineffective for treating illness, notes the National Center for Complimentary and Integrative Health. Several companies have since been cited by the FDA for making unsubstantiated claims about the health benefits of colloidal silver. Regular consumption of colloidal silver may lead to argyria, an often irreversible blue-gray discoloration of the skin. Silver may also interact negatively with certain drugs including various antibiotics, and the thyroid drug thyroxine.
In rarer cases, excessive consumption of silver over time may lead to more serious complications including kidney damage and neurological issues, according to Mayo Clinic. Silver is not an essential mineral for the human body.