School trips to chocolate theme park, Cadbury World, have been criticised by anti-obesity campaigners.
The �6m attraction, in Birmingham, is described as "the only purpose-built visitor centre in the UK dedicated to chocolate".
Hundreds of school parties from around the country visit the park each year.
But nutritionists fear the trips will not help the rising rate of obesity among young people and have branded them "inappropriate".
'Promoting chocolate'
Last month a Commons Health Committee report warned that obese youngsters could become the first generation to die before their parents.
As well as attractions, Cadbury World has a shop dedicated to selling chocolate and Cadbury merchandise.
Amanda Wynne, of the British Dietetic Association, said it may be "fun", but it would also encourage chocolate consumption.
"This is something we would be concerned about," she said.
""Schools should be looking at appropriate trips instead of places where they will be promoting chocolate consumption.
"Obviously you want children to have fun, but this is not the right way."
However Tony Bilsborough, spokesman for Cadbury World, said anyone worried about school groups visiting the centre had "fundamentally misunderstood" its role.
Free samples
He said Cadbury had worked closely with schools to provide material that fitted in with the national curriculum in subjects such as business studies.
Mr Bilsborough said free samples of chocolate were given out to school parties but there was far more to the centre, including resources on how the business was run, how chocolate is manufactured, and the history of cocoa.
"It's not simply walking around tasting chocolate," he added.
"We regularly receive letters of thanks from teachers who say it's helped their pupils' final results."
Around five million people have visited the site since it was opened in 1990.