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E955 Sucralose – Sweetener Effects and Safety

E955 is the EU food additive code for sucralose, a zero-calorie artificial sweetener derived from sugar that is approximately 600 times sweeter than sucrose.

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Things worth knowing about "E955"

E955 is the EU food additive code for sucralose, a zero-calorie artificial sweetener derived from sugar that is approximately 600 times sweeter than sucrose.

What is E955 (Sucralose)?

E955 is the official European Union designation for sucralose, a high-intensity artificial sweetener derived from ordinary table sugar (sucrose). Through a multi-step chemical process, three hydroxyl groups on the sucrose molecule are replaced by chlorine atoms, producing a compound that is poorly absorbed by the body and contributes virtually no calories. Sucralose is approximately 400 to 600 times sweeter than sucrose and is heat-stable, making it suitable for use in cooking and baking.

Production and Chemical Properties

Sucralose is synthesised from sucrose through selective chlorination. Its chemical name is 4,1,6-trichlorogalactosucrose. Because the digestive system does not recognise the modified molecule as a carbohydrate, it passes through the body largely unabsorbed and is excreted unchanged, producing no significant glycaemic response.

Molecular formula: C₁₂H₁₉Cl₃O₈
Sweetness intensity: approx. 400–600 times that of sucrose
Caloric value: effectively 0 kcal
Heat-stable up to approx. 120 °C
Highly water-soluble

Use in Food and Beverages

Sucralose (E955) is used in a wide range of food and beverage products, particularly in reduced-calorie and sugar-free formulations. Common applications include:

Soft drinks and energy drinks
Yoghurts and dairy products
Confectionery, chewing gum, and baked goods
Table-top sweeteners (powder or tablet form)
Diet products and dietary supplements
Medicines and foods for special medical purposes

Regulatory Approval and Legal Status

In the European Union, E955 is authorised under Regulation (EC) No 1333/2008 on food additives. The European Food Safety Authority (EFSA) has established an acceptable daily intake (ADI) of 15 mg per kilogram of body weight per day. The United States FDA and the World Health Organization (WHO) similarly classify sucralose as safe for general consumption.

Effects on Blood Sugar and Metabolism

Because sucralose is not significantly absorbed in the gastrointestinal tract, it does not directly raise blood glucose levels and is therefore considered a suitable sugar alternative for individuals with diabetes mellitus. However, emerging research is examining whether sucralose consumed alongside carbohydrates might influence insulin responses. The current body of evidence on this topic is not yet conclusive.

Potential Side Effects and Safety

Sucralose is considered safe for most people when consumed in moderate amounts. At very high doses -- far exceeding the ADI -- animal studies have observed effects on the gut microbiota. The relevance of these findings to normal human consumption has not been clearly established. Some individuals report:

Gastrointestinal discomfort at very high intake levels
Possible alterations to gut microbiome composition (ongoing research)

Individuals with known hypersensitivity to chlorinated compounds are advised to consult a healthcare professional before consuming large amounts of sucralose-containing products.

Food Labelling Requirements

Foods containing E955 must declare it in the ingredient list, either as E955 or as sucralose. Additionally, products containing sweeteners are required to carry the label statement with sweetener(s) on the packaging, in accordance with EU food labelling regulations.

References

European Food Safety Authority (EFSA): Re-evaluation of sucralose (E 955) as a food additive. EFSA Journal, 2017.
World Health Organization (WHO): Evaluation of certain food additives – sucralose. WHO Technical Report Series, 2009.
U.S. Food and Drug Administration (FDA): Additional Information about High-Intensity Sweeteners Permitted for Use in Food in the United States. FDA.gov, 2023.

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