Can I just correct a few statements on this thread which are patently not true.
"A child will not starve themselves".
Yes they will. Ds1 has got himself to the point of vomiting his stomach contents after 3 days of refusing to eat because I didn't make the 1 food he wanted. The more he doesn't eat, the more he doesn't want food. And it is proven in anorexics that after a while your body produces endorphins so that 'not eating' actually gives you a 'high'.
'If they are really hungry they will be happy with a raw carrot or apple'.
Well, my dd's favourite food is apple. The chances of getting ds1 to eat either of those food are non-existant. He is phobic of foods that aren't on his 'like' list. I have seen him, after 3 days of not eating, put a piece of meat in his mouth, because I said he 'had' to try some. 4 hours later it was still in his mouth because he couldn't swallow it. He had to spit it out before bed, because he could have choked on it. He tried so hard to eat that piece of meat, but he physically couldn't do it.
'Picky means spoiled and over-indulged'.
No it doesn't. In my ds1's case, I am convinced his pickiness is because of some sensory/taste issue. He is highly sensitive to smell, if dd has a banana, he can smell it from before he gets into the room and is gagging at the smell of it.
Please don't judge if you've never experienced a truly picky child. Ds1 is universally picky - he is fussy about biscuits, sweets, ice cream, cakes, chocolate - there are very few he will eat. Which to my mind proves that it is a true taste issue, and not manipulation. A child who would rather go without a biscuit/chocolate because it's not one he 'likes' is not a child trying to get out of eating their veggies.
I have 3 children - ds1 (7)who is appallingly fussy, dd (4)who eats pretty well anything, but particularly loves fruit and veg and ds2 (2)who is a fairly good eater, but particularly likes meat. They have all been brought up the same way, and yet ds1 is hideously much more difficult than the others. When he went to nursery once a week, they admitted defeat - said he just wouldn't eat anything for the whole day. He went there for 4 years, and in that time almost never ate there. Which meant no food on that day. That is not a child who is pandered and indulged. It is a child with genuine issues.