Eat or Avoid
E551

Silicon Dioxide

Also known as: Quartz, Silica, Silicic oxide, Silicon(IV) oxide, Crystalline silica, Silica sand

Anti-caking AgentsStabilizersAnti-foaming Agents

Safety rating

Generally Safe

Eat Away!Generally SafeUse SparinglyAvoid

Purpose and Function

Silicon dioxide is primarily used as an anti-caking agent to prevent clumping in powdered foods and supplements, and as a stabilizer for texture and consistency. It's also used in pharmaceuticals, cosmetics, and as a desiccant.

Commonly found in

  • Powdered foods and supplements
  • Pharmaceuticals and cosmetics

Key functions

  • Prevents clumping in powdered products
  • Stabilizes texture and consistency

Potential Risks and Side Effects

  1. 01Generally considered safe by the FDA and EFSA
  2. 02No significant health risks at typical dietary consumption
  3. 03Inhalation of fine particles in industrial settings may pose respiratory risks
  4. 04Not known to accumulate in the body when ingested — excreted naturally

References

    Related Additives