DD is very overweight

[SteveBuscemisRheumyEye]

DD is 10 and Very Overweight. I know exactly why she is overweight but really struggling to address the problems.

She has ASD and an extremely limited diet (all beige, not a single vegetable and only strawberries). Portion sizes are too big but she freaks out if she doesn't have the amount requested. Have tried gradual reductions but it doesn't work. She's set in her patterns and I just don't know how to break them.

Absolutely loathes physical movement.

I'm failing her and I don't know what to do

Could you ask for a dietitian referral?
Sensory OT's can also be useful when there are issues around food.
Ds has ARFID and is underweight, but you can be normal or overweight and have ARFID too, so maybe something to look into.

Yes, I have considered ARFID but thought one of the diagnostic criteria was being underweight...

I will request a referral but I just feel like they will tell me what I already know

Not everyone with ARFID is underweight.