My daughter is a “mukbanger”

I'm very new to reddit so pardon me if I don't do this correct!

I'm very concerned about my daughters sudden weight gain. She has been taking place in what's called a "mukbang" which is where people online film themselves eating large amount of food for views. My daughter has always enjoyed eating food, but in an amount that was considered normal. When she was younger she was more active and would dance and go to the gym with me, however about a 1 1/2 years ago I noticed a change.

She used to go out and get unhealthy food once or twice a week to film for her TikTok. Her dad and I were okay with this since she would only eat half and give the rest to us. However recently she has been ordering a significant amount of food and eating it all almost EVERY day a week.

According to her, her "fans" enjoy watching her eat and donate money so she can buy more food. I'm very concerned about her health mentally and physically especially since she has gained a significant amount of weight in the last few months. She no longer dances and instead films multiple "mukbangs" a day so that she can continue to eat more food and make more money.

We have expressed our concern to her about her TikToks and her eating habits, yet she insists that she isn't being unhealthy. What do I do???