What Is Azodicarbonamide (ADA)? Safety, Risks & Alternatives

⚡ Quick Facts

E-NumberE927a
FDA StatusFDA-approved as a dough conditioner at levels up to 45 ppm (21 CFR 172.806). FDA considers it GRAS at approved levels. I…
EFSA StatusBanned in the EU as a food additive. Also banned in Australia, Singapore, and several other countries. EFSA has not esta…
SeverityModerate Risk (6/10)

What Is Azodicarbonamide (ADA)?

A synthetic chemical used as a flour bleaching and dough conditioning agent in bread production. It is also used as a foaming agent in the production of yoga mats, shoe soles, and other foam plastics — earning it the nickname 'yoga mat chemical.'

Mechanism of Action

In flour, ADA rapidly breaks down into biurea and semicarbazide during baking. Semicarbazide is classified as a possible carcinogen. The WHO determined that ADA can induce asthma and skin sensitization in workers exposed to the powder, though dietary exposure from bread is at much lower levels.

Why People Avoid Azodicarbonamide (ADA)

Regulatory Status

🇺🇸 FDA

FDA-approved as a dough conditioner at levels up to 45 ppm (21 CFR 172.806). FDA considers it GRAS at approved levels. In 2014, Subway removed ADA from its bread after public outcry, and many major chains followed.

🇪🇺 EFSA

Banned in the EU as a food additive. Also banned in Australia, Singapore, and several other countries. EFSA has not established an ADI because it is not permitted.

Regulatory Timeline

1962 FDA approves ADA for food use
1999 WHO links ADA to respiratory sensitization in occupational settings
2005 EU bans ADA in food
2014 Subway removes ADA from bread following viral petition; many chains follow
• Banned in EU, UK, Australia, Singapore — still legal in US

Products Containing Azodicarbonamide (ADA) (1 found)

#ProductBrandScore
1100% WHOLE WHEAT ROUND TOP BREAD, 100% WHOLE WHEATWal-Mart Stores, Inc.10/100

Average safety score for products containing Azodicarbonamide (ADA): 10/100

Safer Alternatives


Ascorbic acid (vitamin C)

Enzymes (amylase, xylanase)

Potassium iodate

Scientific Sources

  1. WHO (1999). Concise International Chemical Assessment Document 16: Azodicarbonamide
  2. FDA (2014). Azodicarbonamide (ADA) — Questions and Answers
  3. EFSA (2005). Opinion on semicarbazide in food

Frequently Asked Questions

What is Azodicarbonamide (ADA)?
A synthetic chemical used as a flour bleaching and dough conditioning agent in bread production. It is also used as a foaming agent in the production of yoga mats, shoe soles, and other foam plastics — earning it the nickname 'yoga mat chemical.'
Is Azodicarbonamide (ADA) safe?
Azodicarbonamide (ADA) is FDA-approved as a dough conditioner at levels up to 45 ppm (21 CFR 172.806). FDA considers it GRAS a. Banned in the EU as a food additive. Also banned in Australia, Singapore, and several other countrie.
Where is Azodicarbonamide (ADA) banned?
Azodicarbonamide (ADA) is not currently banned in any major market according to our database.
What are alternatives to Azodicarbonamide (ADA)?
Safer alternatives to Azodicarbonamide (ADA) include: Ascorbic acid (vitamin C), Enzymes (amylase, xylanase), Potassium iodate.
How can I avoid Azodicarbonamide (ADA)?
Download CheckIt AI and scan any product's barcode or ingredient label. The app will flag Azodicarbonamide (ADA) and suggest safer alternatives.
What foods contain Azodicarbonamide (ADA)?
Azodicarbonamide (ADA) is commonly found in: Commercial bread, Hamburger buns, Bagels, Pizza dough, Tortillas. Our database has flagged it in 1 products.
What are the side effects of Azodicarbonamide (ADA)?
Concerns about Azodicarbonamide (ADA) include: Banned in the EU, Australia, and Singapore; Breaks down into semicarbazide, a possible carcinogen; WHO links it to occupational asthma.
Is Azodicarbonamide (ADA) natural or artificial?
Azodicarbonamide (ADA): In flour, ADA rapidly breaks down into biurea and semicarbazide during baking. Semicarbazide is classified as a possible carcinogen. The WHO determine.
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⚕️ This page provides ingredient information for educational purposes only. It is not medical advice. Consult a healthcare professional for personalized dietary guidance.

📋 Cite This Data
APACheckIt AI. (2026). "What Is Azodicarbonamide (ADA)? Safety, Risks & Alternatives | CheckIt AI". Climaverse PBC. Retrieved from https://getcheck.it/ingredients/azodicarbonamide
MLA"What Is Azodicarbonamide (ADA)? Safety, Risks & Alternatives | CheckIt AI." CheckIt AI, Climaverse PBC, 2026-03-05. https://getcheck.it/ingredients/azodicarbonamide.
HTML Embed<a href="https://getcheck.it/ingredients/azodicarbonamide">What Is Azodicarbonamide (ADA)? Safety, Risks & Alternatives | CheckIt AI — CheckIt AI</a>
BibTeX@misc{checkit2026ingredientsazodicarbonamide, title = {What Is Azodicarbonamide (ADA)? Safety, Risks & Alternatives | CheckIt AI}, author = {CheckIt AI}, year = {2026}, publisher = {Climaverse PBC}, url = {https://getcheck.it/ingredients/azodicarbonamide}, note = {Retrieved 2026-03-05} }