Long-term weight outcomes

Aspartame

Long-term observational findings for non-sugar sweeteners are uncertain and cannot establish causation.

limited evidence

Direction: association

Magnitude: unknown

Human evidence reviewed

Study context

Population: Adults in observational cohorts

Studied dose: Varies or not established

Duration: Varies across reviewed studies

Last reviewed: 2026-09-16

Limitations & caveats

  • Sweetener-specific evidence is heterogeneous.

Sources

Health effects of non-sugar sweeteners: systematic reviewExpert or government fact sheet · World Health Organization · supportsOpen ↗

Source type and claim strength are separate. A fact sheet summarizes underlying research; its link is not an individual clinical trial.