Diacetyl vs E620

Wondering whether Diacetyl or E620 is safer? We analyzed both ingredients using FDA regulatory data, EU food safety assessments, and peer-reviewed research to help you make an informed choice.

Quick Verdict: Diacetyl vs E620

Bottom line: E620 scores 90/100 vs 35/100 — making it the safer choice.

Scores based on regulatory status, research consensus, and known health effects. Not medical advice.

2026 Side-by-Side Comparison

FactorDiacetylE620
Safety Rating🟠 Health Concerns✅ Generally Safe
Safety Score35/10090/100
Categoryflavor enhancersflavor enhancers

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What Is Diacetyl?

A buttery flavoring used in microwave popcorn. Linked to 'popcorn lung' disease in factory workers.

Diacetyl is classified as a flavor enhancers and has a safety rating of warning (35/100). Some health-conscious consumers choose to avoid it.

What Is E620?

The naturally occurring amino acid form of MSG. Found in tomatoes and cheese.

E620 is classified as a flavor enhancers and has a safety rating of safe (90/100). Most health experts consider it acceptable in moderation.

Diacetyl vs E620: Key Differences

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Which Should You Choose?

Based on current evidence, E620 appears to be the safer option. However, individual responses can vary based on genetics, health conditions, and consumption levels.

Want to check if a specific product contains Diacetyl or E620? The free CheckIt app uses AI to scan any product and instantly break down every ingredient.

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Frequently Asked Questions

Is Diacetyl safe to eat?
A buttery flavoring used in microwave popcorn. Linked to 'popcorn lung' disease in factory workers. It has a safety score of 35/100 in our database.
Is E620 safe to eat?
The naturally occurring amino acid form of MSG. Found in tomatoes and cheese. It has a safety score of 90/100 in our database.
Which is worse for you: Diacetyl or E620?
Diacetyl has a lower safety score (35/100), making it the worse option based on current research.
What can I use instead of Diacetyl or E620?
Scan any product with the CheckIt app to see safer alternatives instantly. The app analyzes over 25,000 products and suggests cleaner options.
How do I know if my food contains Diacetyl or E620?
Check the ingredients list on the packaging, or scan the product with the CheckIt AI app for an instant breakdown with safety scores for every ingredient.
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📋 Cite This Data
APACheckIt AI. (2026). "Diacetyl vs E620: Safety, Side Effects & Which to Avoid (2026)". Climaverse PBC. Retrieved from https://getcheck.it/compare/diacetyl-vs-e620
MLA"Diacetyl vs E620: Safety, Side Effects & Which to Avoid (2026)." CheckIt AI, Climaverse PBC, 2026-04-04. https://getcheck.it/compare/diacetyl-vs-e620.
HTML Embed<a href="https://getcheck.it/compare/diacetyl-vs-e620">Diacetyl vs E620: Safety, Side Effects & Which to Avoid (2026) — CheckIt AI</a>
BibTeX@misc{checkit2026comparediacetylvse620, title = {Diacetyl vs E620: Safety, Side Effects & Which to Avoid (2026)}, author = {CheckIt AI}, year = {2026}, publisher = {Climaverse PBC}, url = {https://getcheck.it/compare/diacetyl-vs-e620}, note = {Retrieved 2026-04-04} }