Ds8yo has diagnosed ARFID. He was 5yo when diagnosed. Extremely restrictive - he doesn’t eat a meal, as anyone else would describe it, just a small selection of individual foods. He also has diagnosed ASD.
The treatment involves an annual check in with the food people in the OT team. That’s it. Other than that, it’s ongoing ‘treatment’ at home.
The overriding aims are 1. not to make his eating any more restrictive than it currently is (which is seen as a positive in itself), 2. to move some of the foods that he only eats occasionally into the list of foods that he eats regularly and 3. To increase his sensitivity to foods that he doesn’t eat eg by touch (fingers), moving a plate with that food on it eg to the bin and then throwing it away, smell (giving it a sniff), taste (giving it a kiss).
It is not (for him, anyway), to make him eat any of it if he doesn’t want to. I also would never interfere with what he does eat so as not to ode his trust. For example, some people suggest adding a teeny bit of a new food to a bowl of heinz tomato soup (which he will eat), but I don’t do that as if he rejects the soup, he won’t eat it next time either, and then I’ve lost a safe food.
I supplement the yoghurt that he will eat with small quantities of liquid wellkid and oil, as I know that doesn’t affect his willingness to eat it.