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

FactorAspartameRed 40 (Allura Red AC)
E-NumberE951E129
CategorySweetenerArtificial Color
SeverityModerate Risk (6/10)Moderate Risk (6/10)
FDA StatusFDA-approved since 1981 (dry foods) and 1983 (beverages). Classified as GRAS-equivalent. FDA's ADI is 50 mg/kg body weig…FDA-approved since 1971. Currently under review as part of the 2025-2026 FDA food dye reassessment. Listed on the FDA's …
EFSA StatusEFSA completed a comprehensive risk assessment in 2013, confirming safety at the ADI of 40 mg/kg body weight/day. In Jul…EFSA re-evaluated in 2009 and maintained approval with an ADI of 7 mg/kg body weight/day. EU requires warning label: 'ma…
Banned In——
Products Found728

Key Differences

Health Concerns Comparison

Aspartame

Red 40 (Allura Red AC)

Which Products Use Each?

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

⚖️ The Verdict

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

Red 40Yellow 5Yellow 6AspartameBHABHTSodium NitriteCarrageenanSucraloseTitanium DioxidePotassium BromateHigh Fructose Corn SyrupMSGSodium BenzoateTBHQPolysorbate 80Red 3Caramel ColorSoy LecithinNatural FlavorsAcesulfame-KMaltodextrinXanthan GumGuar GumCitric AcidErythritolBlue 1Propyl GallateMono & DiglyceridesPectinAcacia GumAgarAnnattoAutolyzed YeastAzodicarbonamideBVOCalcium PropionateCarnauba WaxCelluloseDATEMDisodium InosinateGellan GumKonjacLocust Bean GumMethylcelluloseSodium AlginateSodium Aluminum PhosphateTragacanth Gum

Food Safety Answers

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Free-From Finder

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Ingredient Comparisons

Red 40 vs Yellow 5Red 40 vs Yellow 6Aspartame vs SucraloseAspartame vs HFCSBHA vs BHTRed 40 vs AspartameCarrageenan vs Soy LecithinSucralose vs HFCSTBHQ vs BHATBHQ vs BHTRed 40 vs Titanium DioxideRed 40 vs Caramel ColorMSG vs Natural FlavorsSodium Benzoate vs Potassium BromateYellow 5 vs Red 3Polysorbate 80 vs CarrageenanXanthan Gum vs Guar GumRed 40 vs Red 3Erythritol vs SucraloseMaltodextrin vs HFCSAll Ingredient Comparisons

Store Reports

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Original Research

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📋 Cite This Data
APACheckIt AI. (2026). "Aspartame vs Red 40 (Allura Red AC) — Which Is Worse? | CheckIt AI". Climaverse PBC. Retrieved from https://getcheck.it/ingredients/aspartame-vs-red-40
MLA"Aspartame vs Red 40 (Allura Red AC) — Which Is Worse? | CheckIt AI." CheckIt AI, Climaverse PBC, 2026-03-05. https://getcheck.it/ingredients/aspartame-vs-red-40.
HTML Embed<a href="https://getcheck.it/ingredients/aspartame-vs-red-40">Aspartame vs Red 40 (Allura Red AC) — Which Is Worse? | CheckIt AI — CheckIt AI</a>
BibTeX@misc{checkit2026ingredientsaspartamevsred40, title = {Aspartame vs Red 40 (Allura Red AC) — Which Is Worse? | CheckIt AI}, author = {CheckIt AI}, year = {2026}, publisher = {Climaverse PBC}, url = {https://getcheck.it/ingredients/aspartame-vs-red-40}, note = {Retrieved 2026-03-05} }