Aspartame
Sweetener
Reviewed human evidence related to aspartame. Effects depend on dose and context.
Last reviewed: 2026-09-16
Aliases: None listed
Reviewed outcomes
Approved-use safety
Aspartame · no clear effect · Magnitude unknown
Regulators consider aspartame safe under approved conditions of use for the general population.
moderate evidence · Context onlyEvidence, caveats & sources›Long-term weight outcomes
Aspartame · association · Magnitude unknown
Long-term observational findings for non-sugar sweeteners are uncertain and cannot establish causation.
limited evidence · Human data reviewedEvidence, caveats & sources›