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Silicon is a trace mineral.

Where is it found?

Good dietary sources for silicon include whole-grain breads and cereals, root vegetables, and beer. A form of silicon called silicates is added to some processed foods.

Silicon has been used in connection with the following condition (refer to the individual health concern for complete information):

Science Ratings Health Concerns


Sprains and strains

3Stars Reliable and relatively consistent scientific data showing a substantial health benefit.
2Stars Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit.
1Star For an herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support and/or minimal health benefit.

Who is likely to be deficient?

Silicon is not an essential mineral. Deficiencies have not been reported.

How much is usually taken?

Because silicon has not been established as essential, a recommended intake has not been established. The average diet is estimated to provide 5–20 mg of silicon per day—an amount that appears adequate. When used as a supplement, common amounts range from 1 to 2 mg per day.

Are there any side effects or interactions?

A high dietary intake of silicon is not associated with any toxic effects. Inhalation of large amounts of silicon (in an industrial setting) can cause the respiratory disease silicosis.

At the time of writing, there were no well-known drug interactions with silicon.

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