Harry Styles' One Direction bandmates mock his ''girlie'' diet.

The 20-year-old hunk is on the 'Where We Are' tour alongside Zayn Malik, Louis Tomlinson, Niall Horan and Liam Payne who find his health kick ''funny'' and are placing bets on when he'll get sick of green tea and sushi.

A source told The Daily Star newspaper: ''Alongside the normal menus, Harry has put in his own special request of one sushi meal and five cups of green tea a day.

''His pal Nick Grimshaw initially got him into it.

''But the other boys are now betting money on when he'll crack.

''They want none of the sushi and green tea, and find it funny he's asking their chefs to prepare what they consider girlie food.''

1D all eat together and to maintain some sort of routine they use the same tablecloth and napkins.

The source added: ''They all eat together at the same table - which has the same powder blue and white spotty tablecloth and napkins in every city.

''It helps give them a sense of routine and homeliness.''

One Direction ended the South American leg of their tour on May 11 in Brazil and are set to take to the stage in Dublin on May 23 as they hit Europe.