Ingredient

Aspartam

Source
Not animal-derived
Allergen
No
Role in food
Manufacturers use aspartame to provide a sweet taste with very few calories, making it …

What is Aspartam?

Aspartame is an artificial sweetener, approximately 200 times sweeter than sucrose (table sugar). It is a methyl ester of the dipeptide formed from the amino acids aspartic acid and phenylalanine. It is synthesised chemically.

Is Aspartam vegan?

Aspartam is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is Aspartam gluten-free?

It does not contain gluten.

Is Aspartam a major allergen?

Aspartame is not derived from any of the 14 major allergens that UK law requires to be emphasised on food labels.

What is Aspartam used for?

Manufacturers use aspartame to provide a sweet taste with very few calories, making it a popular choice for 'diet' or 'sugar-free' products.

Is Aspartam safe?

Aspartame is authorised as a food additive in Great Britain and is listed on the Register of Food Additive Authorisations.

Why it's used

Manufacturers use aspartame to provide a sweet taste with very few calories, making it a popular choice for 'diet' or 'sugar-free' products. It is commonly found in sugar-free soft drinks, chewing gum, yogurts, and some desserts.

Health notes

Aspartame is authorised as a food additive in Great Britain and is listed on the Register of Food Additive Authorisations. Individuals with phenylketonuria (PKU) must avoid aspartame as it contains phenylalanine.

Allergen info

Aspartame is not derived from any of the 14 major allergens that UK law requires to be emphasised on food labels. It does not contain gluten.

Foods that contain Aspartam

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Auto-generated content. This description was generated automatically and is pending editorial review. Inaccuracies are possible. Found a mistake? Contact us.

Last updated: 17 October 2026

Note: This site presents label data from Open Food Facts for general information. It is not medical advice. Check the package label; formulations change.