Dieting expatriates with international health insurance may be some of the people that benefit from calorie counts on food menus.
Miles Quest, spokesman for the British Hospitality Association, claimed it is not currently known how enforcing this would affect consumer choices.
He noted that healthy eating is an individual responsibility, adding "the industry can only provide the information" but details on the fat content of meals is "one tool in the armoury".
People are instinctively aware some products are higher in calories than others but might not want to be reminded of it while eating, the representative continued.
He stated this may still "nudge [the public] into eating less or eating different kinds of food".
Mr Quest pointed out obesity is often a larger lifestyle problem, with issues such as a lack of exercise and alcohol intake contributing to it.
A study performed by the New York Health Department and published in the British Medical Journal found a positive but small impact on obesity levels occurred when New York legislated the addition of calorie information on the menus of chain restaurants.