My 1yo just doesn't eat . what can I do?

We've now given her the kids multi vitamins (abidec) because we are worried, I dunno if she just don't like it, or its a faze, she's always been fussy since she's started eating at 6mnths anyway, because when we give her noodles she'll wax it off lol but she started getting constipated so I am changing it up a bit but she's not having it! X

She also had fruits and the bear crisps before napped which she ate, sometimes she won't even taste the food I have to quickly put it on her lip for her to lick it and get a taste sometimes she'll come back for a spoonful then that's it others she won't bother

I've given her milk when she woke up then I gave her weetabix and hour and a half later she had like two spoons, then I had some baked chips and cod for midday lunch gave her some she just ended up throwing it off her high chair then around 2 i gave her milk and she napped. Then around 5/6 I gave her pasta bake and she's just not interested will have a few pastas and leave a lot then we give her milk before bed only around 4oz of milk each time

What has she eat today and how much milk does she drink xx @mspowell93