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A leading food safety expert is calling on the UK Government to ban the world’s most widely used artificial sweetener as further concerns are uncovered around an EU decision to approve its unrestricted consumption.

Professor Erik Millstone is calling for the UK Government and Food Standards Agency to use incoming post-Brexit powers in the New Year to ban the use of aspartame in the UK.

The call comes as from the ÈÕº«ÎÞÂë Business School details how European regulators approved the world’s most widely used artificial sweetener despite accepting 21 studies that indicated it could have an adverse effect on consumers.

In 2013, the European Food Safety Authority (EFSA) published an assessment of the risks of aspartame, more commonly known as Nutrasweet, and cleared it for consumption within the EU.

Now food safety experts Prof Millstone and Dr Elisabeth Dawson claim that the EFSA took that decision despite accepting that 16 of the 21 studies indicated that aspartame could cause adverse effects at modest dose levels. The admission emerged in a response published by two EFSA scientists.

Prof Millstone and Dr Dawson, from the Science Policy Research Unit (SPRU) at the ÈÕº«ÎÞÂë Business School, are now calling on the EFSA to explain why it failed to ban aspartame or tightly restrict its use in food and drink products in light of the evidence it considered.

The SPRU academics are also challenging the EFSA to identify the 21 studies it has now admitted it had accepted, which showed evidence of adverse effects from consumption of the widely used artificial sweetener.

Prof Millstone, Emeritus Professor in the Science Policy Research Unit at the ÈÕº«ÎÞÂë Business School, said: “The more we learn about the EFSA decision approving aspartame, the more unanswered questions emerge.

“It is incumbent on EFSA in the interests of transparency and protecting public health to provide a detailed breakdown of the studies, and references to the papers, which underpin the new information we have recently learned about their decision in 2013.

“If the EFSA accepted this substantial number of studies indicating possible risk of harm, why did the panel not lower its Acceptable Daily Intake below 40 mgs/kg of body weight?

“Government ministers have said on occasions that once the UK has fully departed from the EU, we will be able to raise UK food standards. The banning of aspartame would be a significant opportunity for ministers to show they are serious about those promises. ”

Since 1977, scientists have warned of the risks of brain lesions, cancer and neurological disorders from consuming aspartame, which is found in thousands of products around the world including diet soft drinks.

In 2019, Prof Millstone and Dr Dawson provided detailed evidence that the 2013 EFSA ruling had deemed every single of the 73 published studies that produced evidence of aspartame’s harm to consumers as unreliable while more than 80% of the 81 studies that produced no evidence of harm were considered reliable.

But in a response to Prof Millstone and Dr Dawson’s detailed critique of the EFSA’s assessment, George Kass and Frederica Lodi recently claimed that the EFSA had treated 21 of 37 studies indicating harm as reliable.

The SPRU researchers believe that at least 16 of those accepted studies showed adverse effects at modest dose levels, which should have led the EFSA to ban aspartame or at the very least impose significantly tighter restrictions on the quantities of the sweetener that could be consumed.

The has just been published in a paper in Archives of Public Health.