Some concerns raised; more research may be needed
Silicon Dioxide (Silica)
At a Glance
Quick Answer
Silicon Dioxide (Silica) (E551) is rated "Use Caution" according to current evidence. It is approved in the EU and approved in the US. This additive is currently approved in all four major markets (US, EU, UK, Japan).
On This Page
What is Silicon Dioxide (Silica)?
Anti-caking agent. Nanoparticle concerns being studied
Regulatory Status by Country
🇺🇸 United StatesUS
Approved (GRAS)US name: Silicon Dioxide
GRAS. Max 2% as anti-caking
🇪🇺 European UnionEU
ApprovedAnti-caking agent. Nanoparticle concerns being studied
🇬🇧 United KingdomUK
Same as EU pre-BrexitUK retained EU food additive regulations post-Brexit with some modifications
🇯🇵 Japan
ApprovedJapanese: 二酸化ケイ素
Approved anti-caking agent
🇨🇦 CanadaCA
ApprovedGenerally aligned with US FDA. Regulated by Health Canada.
🇦🇺 Australia/NZAU/NZ
ApprovedGenerally aligned with EU standards. Regulated by FSANZ.
🇮🇳 India
ApprovedWidely approved internationally. Regulated by FSSAI.
🇰🇷 South KoreaKR
ApprovedGenerally aligned with Japanese standards. Regulated by MFDS.
🇧🇷 Brazil
ApprovedGenerally aligned with Codex/US standards. Regulated by ANVISA.
🇨🇳 China
ApprovedPermitted under GB 2760 national standard.
Note: Canada, Australia/NZ, India, South Korea, Brazil, and China statuses are inferred from international regulatory patterns. Always verify with the relevant national authority.
Expert Analysis
Silicon Dioxide (Silica) is classified as a anti-caking agent in the food additive regulatory framework. While approved for use, some scientific studies have raised questions that warrant ongoing monitoring. This additive is approved across multiple major regulatory markets worldwide, suggesting broad scientific consensus on its safety profile. Some debate exists around Silicon Dioxide (Silica), though the weight of evidence supports its current regulatory status. Sensitive individuals may wish to monitor their consumption. As with all food additives, moderation is key. Consult healthcare professionals for personalized dietary advice.
Is Silicon Dioxide (Silica) safe?
Silicon Dioxide (Silica) has a safety rating of "Use Caution". Some concerns raised; more research may be needed
Is Silicon Dioxide (Silica) vegan?
Silicon Dioxide (Silica) is generally considered vegan-friendly, though sourcing may vary.
Is Silicon Dioxide (Silica) banned in Europe?
No, Silicon Dioxide (Silica) is Approved in the EU.
What is Silicon Dioxide (Silica) made from?
Anti-caking agent. Nanoparticle concerns being studied
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Frequently Asked Questions
Is Silicon Dioxide (Silica) safe?
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What is Silicon Dioxide (Silica) used for?
Often Found Together
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