Red 40 (Allura Red AC) vs Aspartame — Which Is Worse?

FactorRed 40 (Allura Red AC)Aspartame
E-NumberE129E951
CategoryArtificial ColorSweetener
SeverityModerate Risk (6/10)Moderate Risk (6/10)
FDA StatusFDA-approved since 1971. Currently under review as part of the 2025-2026 FDA food dye reassessment. Listed on the FDA's …FDA-approved since 1981 (dry foods) and 1983 (beverages). Classified as GRAS-equivalent. FDA's ADI is 50 mg/kg body weig…
EFSA StatusEFSA re-evaluated in 2009 and maintained approval with an ADI of 7 mg/kg body weight/day. EU requires warning label: 'ma…EFSA completed a comprehensive risk assessment in 2013, confirming safety at the ADI of 40 mg/kg body weight/day. In Jul…
Banned In——
Products Found287

Key Differences

Health Concerns Comparison

Red 40 (Allura Red AC)

Aspartame

Which Products Use Each?

28
products contain Red 40 (Allura Red AC)
7
products contain Aspartame

⚖️ The Verdict

Both Red 40 (Allura Red AC) and Aspartame have the same severity score (6/10). Neither is clearly worse than the other based on current data.

Both ingredients should be consumed mindfully. Use CheckIt AI to scan products and avoid whichever ones concern you most.

Frequently Asked Questions

Is Red 40 (Allura Red AC) or Aspartame worse?
Both Red 40 (Allura Red AC) and Aspartame have the same severity score (6/10). Neither is clearly worse based on available data.
What is the difference between Red 40 (Allura Red AC) and Aspartame?
Red 40 (Allura Red AC) is a artificial color, while Aspartame is a sweetener. They serve different functions in food products.
Are Red 40 (Allura Red AC) and Aspartame banned?
Red 40 (Allura Red AC) is not currently banned in any major market. Aspartame is not currently banned in any major market.
How can I avoid both Red 40 (Allura Red AC) and Aspartame?
Download CheckIt AI and scan any product's barcode or ingredient label. The app will flag both Red 40 (Allura Red AC) and Aspartame and suggest safer alternatives.
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Related Pages

Related Comparisons

Red 40 (Allura Red AC) vs Yellow 5 (Tartrazine)Red 40 (Allura Red AC) vs Yellow 6 (Sunset Yellow FCF)Red 40 (Allura Red AC) vs Red 3 (Erythrosine)Red 40 (Allura Red AC) vs Blue 1 (Brilliant Blue FCF)Red 40 (Allura Red AC) vs Caramel Color (4-MEI)Red 40 (Allura Red AC) vs Titanium DioxideRed 40 (Allura Red AC) vs AnnattoAspartame vs SucraloseAspartame vs High Fructose Corn SyrupAspartame vs Acesulfame Potassium (Ace-K)Aspartame vs ErythritolAspartame vs Maltodextrin
Red 40 (Allura Red AC) Deep Dive Aspartame Deep Dive All 180 Comparisons All Ingredients Ingredients Banned in Europe Scoring Methodology

⚕️ This comparison is for educational purposes only. It is not medical advice. Consult a healthcare professional for personalized dietary guidance.

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Ingredient Safety

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Food Safety Answers

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Free-From Finder

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Ingredient Comparisons

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Store Reports

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Original Research

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📋 Cite This Data
APACheckIt AI. (2026). "Red 40 (Allura Red AC) vs Aspartame — Which Is Worse? | CheckIt AI". Climaverse PBC. Retrieved from https://getcheck.it/ingredients/red-40-vs-aspartame
MLA"Red 40 (Allura Red AC) vs Aspartame — Which Is Worse? | CheckIt AI." CheckIt AI, Climaverse PBC, 2026-03-05. https://getcheck.it/ingredients/red-40-vs-aspartame.
HTML Embed<a href="https://getcheck.it/ingredients/red-40-vs-aspartame">Red 40 (Allura Red AC) vs Aspartame — Which Is Worse? | CheckIt AI — CheckIt AI</a>
BibTeX@misc{checkit2026ingredientsred40vsaspartame, title = {Red 40 (Allura Red AC) vs Aspartame — Which Is Worse? | CheckIt AI}, author = {CheckIt AI}, year = {2026}, publisher = {Climaverse PBC}, url = {https://getcheck.it/ingredients/red-40-vs-aspartame}, note = {Retrieved 2026-03-05} }