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Is E951 halal or haram?

Aspartame · Sweetener

SuspectLast reviewed: September 2026

E951 (Aspartame) is generally classified as suspect (mashbooh). Made from two amino acids that are produced by fermentation. The doubt is the fermentation media and enzymes, which the label does not name. Halal-certified aspartame exists; uncertified is doubtful.

What is E951?

E951, listed on labels as Aspartame, is a sweetener that adds sweetness with little or no sugar. You'll most often find it in packaged and processed foods.

Is E951 halal? The verdict

E951 is mashbooh (doubtful). Made from two amino acids that are produced by fermentation. The doubt is the fermentation media and enzymes, which the label does not name. Halal-certified aspartame exists; uncertified is doubtful. Manufacturers aren't required to print the source on the label, so unless the pack states a plant/vegetable source or carries a recognised halal certification (HMC, JAKIM, MUI, IFANCA), the safest choice is to avoid it.

How to check E951 on a label

Scan the ingredient list for E951 and its other names. If it's present and the source isn't stated, treat the product as doubtful. A barcode or photo scan with Halal Food AI flags E951 automatically and tells you whether the product declares a halal source.

Other names & label terms to scan for

  • Aspartame
  • NutraSweet
  • INS 951
  • E951

Bottom line

E951 is doubtful (mashbooh) — avoid unless the source is stated as halal or the product is halal-certified.

Stop guessing in the aisle

Halal Food AI flags E951 and every other suspect or not-halal additive automatically — just scan the barcode or snap the ingredient list. Plain-language verdicts, 25+ languages.

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