So the treatment for restrictive ED is family based treatment (FBT) and this means the parents t as less full control of what the child eats.
You decide what they eat, you plate it up, you put it in front of them with the expectation they will eat it.
The child has no involvement with buying food, preparing food or any aspect of what they eat.
Its basically like having a toddler again, you do not give them any choices as they are not well enough to make sensible decisions.
You use whatever leverage you have so I took my DDs phone and she could have it back at the end of the day if she’d eaten her food. Theres no seeing friends, going to school or clubs unless they eat.
When the foods in front of them distraction is your friend, so keep their minds off eating, watch tv, play games etc.
As a parent you have a lot more power than you realise and your child does want to eat, they’re probably starving hungry! You have to be the louder, firmer voice than the ED telling them all the terrible things that will happen if they eat.
It’s normal for your child to get very distressed when being told they have to eat, it was like my dd was possessed tbh. The behaviour was completely out of character and she screamed, banged her head against the wall, threatened to jump out of windows. This is horrendous to witness as a mum but it is also normal.
You need to stay calm and persistent, you have to contain whatever the ED throws at you and still insist the food gets eaten.
I went with smaller but calorie dense portions which worked well for my dd so added double cream and/or butter to everything she ate.