Aspartame

Also known as: E951, APM

Moderate concernunder our published method

By NordicScan Evidence Engine · generated from structured evidence records · source spans verified by automated gates · Reviewed 2026-07-08 · Evidence snapshot geo-wave1-evidence-snapshot-2026-07-08 · Scoring engine det_v3 · how we score.

What it is

Aspartame is a low-calorie sweetener used in diet drinks, sugar-free gum and tabletop sweeteners, labelled E951 in Europe. Products that contain it also carry a phenylalanine note for people with PKU.

Why people ask

Aspartame is one of the most-searched additives after the 2023 WHO hazard classification, and shoppers ask how that squares with the intake level regulators still consider acceptable.

What our method flags — by use

Food · US

In food, our method rates aspartame as moderate-concern: a WHO body issued a hazard classification in 2023, while intake-based reviews kept the acceptable daily intake unchanged.

Authority / source	Finding (our paraphrase)	Evidence tier	Date	Link
WHO / IARC	The WHO's IARC classified aspartame as possibly carcinogenic to humans (Group 2B) in 2023, on limited evidence — a hazard classification, not a product-level verdict.	authority_regulatory	2023-07-14	source
WHO/FAO JECFA	The same year, JECFA listed by its review an unchanged acceptable daily intake for aspartame of 40 mg per kg of body weight.	authority_regulatory	2023-07-14	source

Evidence coverage for this use: Fair (computed from source count × authority tier × recency; signals depth, does not change the concern band).

How this moves a product’s score

On a product's score, aspartame contributes a moderate concern signal under our method, reflecting the 2023 hazard classification alongside the unchanged acceptable daily intake — the two are reported together, not merged into a stronger claim.

Nordic Scan provides ingredient information and a concern score under our published method, for general consumer research. It is not medical advice and not a medical device, and does not diagnose, treat, cure, or prevent any disease, or determine the safety of any product. Decide for yourself.

Common questions

What did the 2023 WHO classification actually change?: Our method does not label a product as good or bad. The evidence table reports the WHO hazard classification and the unchanged acceptable daily intake side by side, so you can see both signals.

This is what Aspartame is. What’s in the products you buy? Scan a label and see the concern signals our method flags. Get the app.

Reviewed 2026-07-08 · Evidence snapshot geo-wave1-evidence-snapshot-2026-07-08 · Scoring engine det_v3 · Sources checked 2026-07-08 · See how we score.