Not yet rated
Safety assessments compiled from FDA, EFSA, FSA, and 7 other regulatory agencies. This information is for educational purposes — consult a healthcare professional for dietary advice.
Curdlan
Last reviewed: April 2026 · Data sourced from WHO JECFA, FDA, EFSA, and 7 other regulatory agencies
At a Glance
Quick Answer
Curdlan (E424) is rated "Not Yet Rated" 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 Curdlan?
Bacterial polysaccharide. Not in EU list. Approved in Japan/US
Curdlan is classified as a Thickener additive. It is currently approved in all major regulatory markets.
Regulatory Status by Country
🇺🇸 United StatesUS
Check FDA database🇪🇺 European UnionEU
NOT APPROVEDBacterial polysaccharide. Not in EU list. Approved in Japan/US
🇬🇧 United KingdomUK
Same as EU pre-BrexitUK retained EU food additive regulations post-Brexit with some modifications
🇯🇵 Japan
Check MHLW database🇨🇦 CanadaCA
Check Health CanadaVerify with Health Canada's permitted food additives list.
🇦🇺 Australia/NZAU/NZ
Likely restrictedMay follow EU restrictions. Check FSANZ Schedule 15.
🇮🇳 India
May be restrictedCheck FSSAI regulations. India follows Codex Alimentarius guidelines.
🇰🇷 South KoreaKR
May be restrictedCheck MFDS (Ministry of Food and Drug Safety).
🇧🇷 Brazil
Status variesCheck ANVISA (National Health Surveillance Agency).
🇨🇳 China
May be restrictedChina has independent standards. Check GB 2760.
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
Curdlan is classified as a thickener in the food additive regulatory framework. This additive is approved across multiple major regulatory markets worldwide, suggesting broad scientific consensus on its safety profile. As with all food additives, moderation is key. Consult healthcare professionals for personalized dietary advice.
Is Curdlan safe?
Curdlan has a safety rating of "Not Yet Rated". Not yet rated
Is Curdlan vegan?
Curdlan is generally considered vegan-friendly, though sourcing may vary.
Is Curdlan banned in Europe?
No, Curdlan is NOT APPROVED in the EU.
What is Curdlan made from?
Bacterial polysaccharide. Not in EU list. Approved in Japan/US
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Frequently Asked Questions
Is Curdlan safe?
Is Curdlan banned in any country?
What is Curdlan used for?
Sources & References
Regulatory data for Curdlan is sourced from the following agencies:
- FDA: Substances Added to Food (formerly EAFUS)
- EFSA: Food Additives Database
- FSA: Approved Additives and E Numbers
- MHLW: Standards for Use of Food Additives
- Health Canada: Lists of Permitted Food Additives
- FSANZ: Food Additives
- FSSAI: Food Safety and Standards
- MFDS: Food Additives Standards
- ANVISA: Food Additives Legislation
- GB 2760: National Food Safety Standard
- WHO JECFA: International Safety Evaluations
- CSPI: Chemical Cuisine — Food Additive Safety Ratings
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