The Legal Status of Saccharin in the UK
Saccharin, identified as E954 on ingredient lists, is a legally approved artificial sweetener for use in the United Kingdom. Following the UK's departure from the European Union, the country retained much of the pre-existing EU food additive legislation, including Regulation (EC) No 1333/2008, which governs the use of additives like saccharin. This means that the rules for where and how much saccharin can be added to food and drink are well-established and enforced by UK authorities.
The Role of Regulatory Bodies
The Food Standards Agency (FSA) is the primary body responsible for ensuring the safety and legal compliance of food additives in the UK. It continuously reviews the safety of permitted substances, basing its decisions on expert scientific advice and the latest research. This was demonstrated in late 2024 when the European Food Safety Authority (EFSA)—a body whose scientific opinions are highly influential in the UK—re-evaluated saccharin. The EFSA concluded that saccharin is safe and increased the Acceptable Daily Intake (ADI) for adults, a determination that reinforces the UK's confidence in its continued use.
Usage and Product Availability
Saccharin is not a general-purpose sweetener and is limited to specific food categories and maximum levels. Its stability makes it suitable for a range of products, and it is commonly found in:
- Tabletop sweeteners (like Hermesetas)
- Diet soft drinks and sugar-free beverages
- Jams, jellies, and tinned fruits
- Certain confectionery and chewing gums
- Some baked goods and dessert toppings
It is important to note that specific regulations govern which products can contain saccharin and in what quantities. For instance, in both the UK and the EU, its use in cakes and bakery goods is forbidden.
Comparison of Common Sweeteners in the UK
Sweeteners are often blended to reduce overall sweetness while balancing taste profiles. Here is a comparison of saccharin with other popular alternatives used in the UK.
| Feature | Saccharin (E954) | Aspartame (E951) | Sucralose (E955) | 
|---|---|---|---|
| Sweetness vs. Sugar | ~300-400x | ~200x | ~600x | 
| Calories | Zero | Low | Zero | 
| Heat Stability | Very high | Low | High | 
| Common Aftertaste | Often described as slightly bitter or metallic | Not typically | Not typically | 
| Common Use Cases | Tabletop, diet drinks, jams | Diet drinks, desserts | Baking, drinks, processed foods | 
The Saccharin Safety Debate: Past vs. Present
Saccharin has a controversial history, primarily stemming from a study in the 1970s that linked it to bladder tumours in male rats. This led to mandatory warning labels on saccharin products in some countries. However, subsequent, more comprehensive research revealed that the mechanism causing these tumours in rats is not relevant to human biology. As a result, the International Agency for Research on Cancer (IARC) reclassified saccharin, and warning label requirements were removed.
More recently, concerns have shifted to the potential impact of sweeteners on gut bacteria and weight management. Preliminary studies have suggested some links, but research in this area is ongoing and not yet conclusive. In April 2025, the UK Scientific Advisory Committee on Nutrition (SACN) specifically advised against giving drinks containing artificial sweeteners, including saccharin, to young children, encouraging them to get used to plain water instead.
Ensuring Public Health in the UK
The UK's regulatory approach to saccharin is cautious and evidence-based. The FSA's continuous oversight and review of sweeteners demonstrate a commitment to public safety. In fact, UK health experts recently called for industry data on the quantities of sweeteners used in products to improve monitoring of population exposure. This shows a proactive stance on managing public health concerns related to food additives.
Conclusion
Yes, saccharin is and remains allowed for use in the UK as a food additive. Its journey from wartime sugar substitute to a standard food additive was marked by scientific controversy, but modern regulatory bodies, including the UK's FSA and Europe's EFSA, now consider it safe for consumption within specified limits. While its use is restricted to certain food types and consumption by young children is not recommended, it offers a safe, low-calorie alternative to sugar for many adults. Ongoing monitoring and data collection ensure that regulations stay current with the latest scientific understanding. For more information, you can visit the official Food Standards Agency website.