I think the industry as a whole is becoming more inclusive and accepting of different body types. Having said that, I think the vast majority of roles still go to people who are considered slim or fit. Certain roles call for different body types which is great. And some ensembles are using a wider variety of body types. And some roles can be gender and size fluid. But in particular, if you are a dancer/ensemble track performer - size can be an issue, over or under weight. Some contracts have weight clauses that only allow a certain amount of fluctuation up or down in weight for the length of the contract. This is for costuming purposes. They need your costume to have a consistent fit.
This is always an unpopular subject, but It is what it is. OKCU’s dance performance majors do have to weigh in. This is because most of these majors are training/hoping to be Rockettes and other similar jobs. Like it or not, many of these jobs have size requirements, both height and weight. Amusement park shows and cruise lines also are known to have weight clauses in their contracts. Really all sorts of venues do. At OKCU, the weigh ins are intended to help the students manage their weight with some accountability while in college so that when they get in the real world they have healthy, positive habits that will keep them in their dream job. I certainly would not recommend that route for someone with eating issues of any kind. But for those who are interested in the program, know that the students have many classes on nutrition and taking care of their bodies that go along with the weigh ins.
Also be aware that MTs at OKCU are not subject to the same weight requirements as the dancers, but they do take dance classes together so they are very aware of the weight requirements. But you will find a large variety of sizes and shapes of performers in both the acting and MT groups at OKCU.