FITGIRL / Ingredient library

Silicon dioxide

Content reviewed: November 6, 2026

Ingredient information is not a product efficacy study. A publication, traditional use or a link to an ingredient does not authorise a health claim. [4]

Identity & classification

Silica, SiO2; food additive E551. [1] [2]

Natural origin

Silica occurs in minerals, but food-grade amorphous silica is a specified manufactured material. [1] [2]

History & background

The modern ingredient name distinguishes a defined substance or preparation from its source material. The cited specification or technical source documents this distinction; no historical use of the FitGirl formula is implied. [1] [2]

Production methods

Manufactured through controlled processes such as precipitation, then purified. FitGirl’s specific grade is unconfirmed. [1] [2]

FitGirl raw material: the supplier, country of origin, batch specification and manufacturing process have not been independently verified. General production methods below do not establish the origin of this product.

Nutritional properties

A technological ingredient. Its use is not a declaration of a nutritionally significant silicon dose. [1] [2]

Food & sports nutrition

Read its role alongside the complete product composition. A technological ingredient or an unquantified component is not a separate sports-nutrition recommendation. [1] [2]

Research & limitations

The sources describe ingredient identity and composition. They do not test this FitGirl formula. Dose, preparation, study population and outcome must match before research can be interpreted for a particular product; legal authorisation is a separate requirement. [1] [2]