Sir: In reference to your article reporting the European Food Safety Authority’s draft opinion on aspartame in which EFSA confirmed the safety of the low-calorie sweetener (‘EFSA faces questions over its study into aspartame toxicity’, 12 January), I query the helpfulness of questioning the regulator’s review process.

EFSA, like the FSA in the UK, is a trusted risk assessment body with a robust review process. Its report on aspartame represents the most comprehensive and thorough review ever conducted of a food additive and used the latest methodological approaches to confirm, yet again, the safety of this low-calorie sweetener.

Users of aspartame can be reassured that the science that supports this additive has been reviewed by regulatory authorities throughout the world, all of which have concluded it is safe.

Barbara Gallani, director of food safety, science & Health, FDF