Ajinomoto Sweeteners v Asda

The long running battle between Ajinomoto and Asda over Asda’s use of the word ‘nasty’ in relation to aspartame continues.

Ajinomoto is one of the world’s major producers and suppliers of aspartame, an approved sweetener. In 2008 they took legal action, bringing a claim of malicious falsehood against Asda, who were selling own brand health foods using packaging bearing a logo with the wording ‘no hidden nasties’, together with a legend ‘no artificial colours or flavours and no aspartame’.

The possible meanings to be ascribed to the wording on the packaging were considered as a preliminary issue. While the High Court judge, in 2009, found that a substantial number of consumers would consider the wording meant that there is a risk that aspartame is harmful or unhealthy, he also found that there would also be a substantial number who would believe it meant that these foods were meant for customers who found aspartame objectionable. However, on the basis of the ‘single meaning rule’, a legal practice which applies to defamation cases, he then concluded that the latter meaning was the only one that could be applied and therefore referring to aspartame as ‘nasty’ would not amount to a malicious falsehood.

Ajinomoto appealed against this decision and in the Court of Appeal judgment handed down at the beginning of June, the High Court decision was effectively reversed. The Court of Appeal held that, based on the High Court findings that the interpretation of the wording by consumers included both damaging and innocuous meanings, the application of the ‘single meaning rule’ would lead to injustice in this case and should not be applied to claims of malicious falsehood.

This is not the end of the matter however. Now that the preliminary issue as to the meaning of the wording has been settled, Ajinomoto intends to continue with its malicious falsehood claim.

For more information, please contact John Mitchell, partner in Blake Lapthorn's Food law team on 023 8085 7231 or email john.mitchell@bllaw.co.uk.