However, a third said the information would make them feel “conflicted - knowing they should choose something healthy but actually wanting something else” – while 15% said it would not affect their experience. A small number (6%) said it would make them feel guilty.

As for nutritional information on menus, opinions were mixed, with a third of the 400 adults questioned keen to see this made compulsory, but the rest keen to see this information only upon request or not at all.

“While it appears that the majority of consumers support the use of nutritional information on menus in an out-of-home environment, they want it on their own terms," said TMDC director Sally Whelan.

Caterers, meanwhile, have continued to question the feasibility of rolling out calorie labelling in the foodservice sector – something which the UK Food Standards Agency is advocating.

Compass, which trialled calorie labelling at three Royal Mail staff canteens last summer with very positive feedback, said rolling it out across 4,000 sites and 10,000+ products was nevertheless “not feasible”.

Corporate affairs director Allan Edwards said: “Where we have standard offers or limited menus that do not change frequently, it is doable, although burdensome. But it’s much harder in other areas.”