Retailers and suppliers have slammed some of the UK's biggest restaurant chains over their "crazy" decision to abandon trials displaying calorie counts on menus.

It emerged this week that, of 18 companies that signed up to a Food Standards Agency trial in January, only Pret A Manger, Wimpy, the Camden Food Company, Co-operative cafés and the Real Greek have committed to displaying the ­information long-term. Companies believed to have dropped the scheme include KFC, Pizza Hut and Subway.

PepsiCo president Richard Evans said it was crucial consumers had access to nutritional information everywhere they eat. "Transparency is very ­important at a time when public health needs to ­improve," he added.

Another senior food industry figure told The Grocer the catering sector was exploiting the loss of the FSA's responsibility for nutrition.

"The timing of this so soon after the Health Secretary announced his responsibility agenda is bloody crazy," he said. "Retailers and suppliers have done more than their fair share."