Silica

Silica, known as silicon dioxide (SiO2), is indeed utilized in various industries, including food production, beverages, cosmetics, and dental care. It serves as an anti-caking agent in powdered foods, helps clarify beverages, and controls viscosity in products like non-dairy creamers and spices. In the cosmetic industry, silica's light-diffusing properties and absorbency are particularly valued. Diatomaceous earth, a form of silica from diatoms, is used in food and cosmetics. In dental care, hydrated silica acts as an abrasive agent in toothpaste. Silica comes in various forms, including crystalline silica (often encountered as dust in industrial settings and known for its respiratory hazards) and amorphous silica, which is found in products like silica gel capsules. The silica in these capsules is different from the crystalline form and is generally considered to be harmless. Silica gel capsules contain silicic acid, a soluble form of silica used in dietary supplements. Unlike crystalline silica, silicic acid is safe for oral consumption.

There is no established Recommended Dietary Allowance (RDA) for silica. Dosage guidelines on supplement packaging should be followed, and healthcare providers should be consulted for personalized advice, especially if other medications are being taken or if there are existing health conditions.