Note: This advice is given by the CAP Executive about non-broadcast advertising. It does not constitute legal advice. It does not bind CAP, CAP advisory panels or the Advertising Standards Authority.


Conjugated linoleic acid (CLA) is the common name for a group of polyunsaturated fatty acids that are available in concentrated dietary supplement form or as an ingredient in various other supplements. Both the ASA and CAP have seen extravagant claims for products containing CLA, including assertions that they can help fat loss, maintain weight loss, return lean mass, help to make the body more toned, help to maintain the optimum balance between body fat and muscle and, even, fight cancer.

Marketers promoting a food (or a soft drink) or food supplements, should take the Food Rules into account and note that claims which relate to weight and any claims which directly results in an effect on one’s health are likely to fall under Section 15 of the Code. Article 2 of Regulation (EC) 1924/2006 on Nutrition and Health claims made for Foods, defines a health claim as “any claim that states, suggests or implies that a relationship exists between a food category, a food or one of its constituents and health...”

A health claim for a food should only be made if the claim is "authorised" and listed on the EU Register of nutrition and health claims (15.1). The requirements of the regulation are very strict in terms of the permissible wording of health claims. Health claims must be presented clearly and without exaggeration. The ASA is likely to investigate a complaint about a stated health claim which does not have the same meaning as an authorised claim which is listed on the EU Register. Furthermore, a product should be marketed in accordance with the conditions of use for that specific claim. There may be some exceptions to this, but in this instance we urge marketers to seek legal advice.

Similarly, nutrition claims are only permitted if they are listed in the Annex of Regulation (EC) No 1924/2006. Ads must conform with the conditions set out in that Annex (NAH Foods Ltd, 31 July 2013)

CAP understands that at present, there are no authorised claims for CLA that exist on EU Register. As a result CAP advises marketers to avoid making health claims for CLA and that no direct or implied efficacy claims are made.

See Weight control: Food and Food Supplements, Food: General, Food: General Health Claims’, Food: Health Claims, Food supplements, Organic Foods and other entries on “Food” and "Slimming"

Updated 31/12/2014


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