Monosodium Glutamate (MSG) vs Red 40 (Allura Red AC) — Which Is Worse?

FactorMonosodium Glutamate (MSG)Red 40 (Allura Red AC)
E-NumberE621E129
CategoryFlavorArtificial Color
SeverityModerate Risk (6/10)Moderate Risk (6/10)
FDA StatusFDA classifies MSG as GRAS. FDA requires MSG to be declared on the label when added as an ingredient. FDA commissioned a…FDA-approved since 1971. Currently under review as part of the 2025-2026 FDA food dye reassessment. Listed on the FDA's …
EFSA StatusEFSA re-evaluated in 2017 and established a group ADI of 30 mg/kg body weight/day for glutamic acid and its salts (E 620…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

Monosodium Glutamate (MSG)

Red 40 (Allura Red AC)

Which Products Use Each?

7
products contain Monosodium Glutamate (MSG)
28
products contain Red 40 (Allura Red AC)

⚖️ The Verdict

Both Monosodium Glutamate (MSG) 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 Monosodium Glutamate (MSG) or Red 40 (Allura Red AC) worse?
Both Monosodium Glutamate (MSG) 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 Monosodium Glutamate (MSG) and Red 40 (Allura Red AC)?
Monosodium Glutamate (MSG) is a flavor, while Red 40 (Allura Red AC) is a artificial color. They serve different functions in food products.
Are Monosodium Glutamate (MSG) and Red 40 (Allura Red AC) banned?
Monosodium Glutamate (MSG) 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 Monosodium Glutamate (MSG) and Red 40 (Allura Red AC)?
Download CheckIt AI and scan any product's barcode or ingredient label. The app will flag both Monosodium Glutamate (MSG) and Red 40 (Allura Red AC) and suggest safer alternatives.
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Monosodium Glutamate (MSG) 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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📋 Cite This Data
APACheckIt AI. (2026). "Monosodium Glutamate (MSG) vs Red 40 (Allura Red AC) — Which Is Worse? | CheckIt AI". Climaverse PBC. Retrieved from https://getcheck.it/ingredients/monosodium-glutamate-vs-red-40
MLA"Monosodium Glutamate (MSG) vs Red 40 (Allura Red AC) — Which Is Worse? | CheckIt AI." CheckIt AI, Climaverse PBC, 2026-03-05. https://getcheck.it/ingredients/monosodium-glutamate-vs-red-40.
HTML Embed<a href="https://getcheck.it/ingredients/monosodium-glutamate-vs-red-40">Monosodium Glutamate (MSG) vs Red 40 (Allura Red AC) — Which Is Worse? | CheckIt AI — CheckIt AI</a>
BibTeX@misc{checkit2026ingredientsmonosodiumglutamatevsred40, title = {Monosodium Glutamate (MSG) vs Red 40 (Allura Red AC) — Which Is Worse? | CheckIt AI}, author = {CheckIt AI}, year = {2026}, publisher = {Climaverse PBC}, url = {https://getcheck.it/ingredients/monosodium-glutamate-vs-red-40}, note = {Retrieved 2026-03-05} }