Where Leonova lives now, there's no shortage of real food, if she's able to cook. I suspect she's not. With all of the people around in northern Jersey who can cook anything, I'm surprised that Morozov hasn't arranged to have healthy food catered to the rink while they're there. Arena food is rarely cheap, and there are enough of them to order in bulk.
One of Seattle's all-time best ballet dancers left after last season to dance with Les Ballets de Monte Carlo, and he came back for a guest performance earlier this month. At a talk after the show, he said that when he was in Seattle, he had a lot of standard routines so that he'd be at his best. Now, in touring, he can't depend on any routine or even that the schedule is going to stick, and he said he has to be prepared for anything. It's a very different mind set.