I think it's partly to do with interception - not recognising hunger and full signals (honestly until MJ I had no idea people felt like they couldn't eat like this - no wonder I must have looked so greedy. Thought process was "oooh that looks nice. I like X. Eat X. I'm enjoying eating X I will keep doing it..."
Also - sensory feedback. Crisps in particular. I craved crunchy. I don't currently have those cravings like I did.
Also sensory/food issues with not wanting to eat certain foods or certain combinations - often leading to a group of" safe" goods that get eaten regularly. Often processed foods as they are predictable (stereotypical chicken nuggets...)
Also.... Routine... Eating certain things because it's habit and What We Do. This also includes "eating at dinner time because it's dinner time " even though I might have eaten a big snack half hour earlier - it's dinner time so I'll eat dinner...
My youngest is so caught up in all these and so like I was pre MJ.
(I teach about autism, but until MJ had never seem/experienced it from the" other side" so to speak.)
For those with eating disorders including restricting again I think it's complex - but so important to recognise the autism as it can be the need for control that's often there in anorexia (life is unpredictable and overwhelming this is one area I ha E control) but it can also be purely sensory and finding that so many tastes and textures are repulsive. Or that having someone eating noisily st lunch puts you off f food/ smells in the canteen at school puts you off eating / possiy some cleanliness issues too... So people can end up very restricted but not for the reasons people assume when they think anorexia...
Some very off the cuff musings. But it's an area I'm interested in for obvious reasons - especially this year!! I used to explain to families about ND kids not being fussy/what sensory issues are/ways to work with it rather than labelling a child naughty/fussy/making them eat but I've seen it in a whole new light this year when looking at myself post MJ.