Just an fyi that we are vegetarian and not vegan, but I thought I'd get the most useful advice here.
6yo has had iron insufficiency last year and had supplementation prescribed for 3 months. I suspected that was the case due to her behaviour and appearance, hence why I took her to the GP to query it and was correct. She perked up after the supplementation period. However last couple of weeks starting to go go similar to when she didn't have enough iron so I suspect its dipping. She already has a multivit daily with iron but I've seen Holland and Barret do a children's iron supplement so I'm going to try that (and obviously will take her to the GP if she doesnt pick up on that). My 2.5yo has recently had blood tests too for different reasons and his iron was very borderline, so I'm feeling a bit rubbish that I'm clearly not getting enough into their diets at present! I try to give him a daily multivitamin which has iron in, but he usually doesn't take it, but again I'm going to buy him an iron supplement.
I'm going to try giving orange juice with the supplements to aid absorption.
Other than that, what do you give your kids to ensure enough iron? I had my own done fairly recently as I'm pregnant and mine were fine, and we mostly eat the same foods, so that has puzzled me slightly. My eldest isn't a great eater though unfortunately so not so surprised about her. Any examples of a usual day's meals/snacks etc would be useful.
Neither of them will eat veg like kale or spinach sadly.