I don't have any better advice that all of the excellent advice the ladies here have already given you, but I just have to comment on what the parents told you. They actually taped her hands down?????!!!! This is the kind of parenting that has probably made the problem worse. They have made a huge issue of it and created a lot of negative emotions around it. Does she eat okay now? I would think taping hands down would create a very negative eating environment among other things Very sad!