Sir: Your article ‘Front-of-pack labels too much strain for the brain’ (12 July, p5) misrepresents the view I expressed on labelling at the Sugar Reduction Summit. My “frustration” is specific to the issue of labelling total and not free sugars on the front-of-pack nutritional declaration, which is not consistent with the dietary guidelines for sugar proposed by WHO and SACN. However, this is a EU Directive and cannot be changed by the UK.

In contrast to the tone of the article, I am delighted at the widespread voluntary adoption of a colour-coded scheme by UK retailers and an increasing number of suppliers. Labelling is not the sole answer to obesity but an important element in a wider package of measures. 

Susan Jebb, professor of diet and population health, University of Oxford