Silicon dioxide (E551)
| Type of additive | Anti-caking Agents, Stabilizers |
| E Number | E551 |
| Chemical Formula | SiO₂ |
| Also Known As | Quartz Silica Silicic oxide Silicon(IV) oxide Crystalline silica Pure Silica Silicea Silica sand |
Purpose and Function
- Silicon dioxide is primarily used as an anti-caking agent to prevent clumping in powdered foods and supplements.
- It also functions as a stabilizer, helping to maintain the texture and consistency of various food products.
- Beyond food, silicon dioxide is used in pharmaceuticals, cosmetics, and as a desiccant to keep products dry.
Potential Risks and Side Effects
- Silicon dioxide is generally considered safe by regulatory agencies, including the FDA and EFSA.
- There are no significant health risks associated with typical dietary consumption; however, inhalation of fine particles (like in industrial settings) may pose respiratory risks.
- Most studies conclude that , when ingested, it does not accumulate in the body and is excreted naturally.