Since April 2022, large businesses with >250 employees have been required to display calorie information on menus and food labels.
When choosing a meal from a restaurant that meets the legal requirement, you can view calorie information under the item name on their menu. This is visible in the format X 'kcal'.
Restaurants with fewer than 250 employees can voluntarily add calorie information to the Just Eat for Business website, though this is not a legal requirement, and therefore, may not be visible on all menus.