Calorific: which high street meals are the most and least fattening?

From today, large UK restaurants and cafes have to display calorie counts on their menus as part of the government's drive to tackle obesity

From Wednesday, restaurant and cafe chains with more than 250 staff will be required, by law, to display on their menus how many calories are in their meals.

The new legislation has been introduced as part of the government's attempt to address obesity in the UK. Here is a roundup of meals available on the high street that are surprisingly high - or low - in calories.