Dd is 4.5, very tall for her age, and also pretty thin (but not overly so). She eats 3 good meals a day, with plenty of snacks too after school. I have no issues with her eating meals. She eats large portions (pretty much adult sized) and I always give her more if she is hungry.
The maybe odd thing, is that after bedtime she sneaks into the kitchen almost every night and eats lots. I often only know when I find the empty packets (often under her bed). We try to avoid treat foods for this reason, but she will gorge on other foods like peanut butter, yoghurt, fruit etc. Anyone else have any experience of this? I have no issue with her eating as she is very thin, but I would rather she ate at mealtimes!
This may or may not be relevant: she is also language delayed, and is awaiting a child development assessment regarding behaviour issues.