I can't add to all the wonderful dietary advice. I just wanted to give you a and tell you that between 22months and 4years i would only eat:
peanut butter
yogurt
grapes
green apples
plain white bread toast without crusts
cream crackers

My parents were worried sick. I continued to grow but was very pale and didn't gain weight for MONTHS at a time - i can still remember mum putting me on the scales every week and dad running his fingers down the knobbles of my spine to see if they were less prominent. I was only ever borderline anaemic, but wouldn't really eat things with a lot of iron in them anyway, so that was a battle with them trying to get iron into me and me always being on that line. They were worried sick, doctors told them to add butter, cream and oil to my foods (how do you add butter to apples? lol) which didn't really help. When i was 4 i suddenly got over it and began eating selectively but MUCH better.

Fast forward - it did me NO long-term harm. It didn't interfere with my development, growth or brain (let's assume the madness is genetic and not nutrition-related ). It was never a reflection on my mum - luckily i was the youngest of her 6 and she had already raised 5 good eaters and knew it wasn't her. I was too busy to eat, had a very weak appetite, and didn't want to waste valuable runnin-about time sitting chewing something.

I would agree that a trip to the doc to try to get him feeling more well would be a good idea, but don't beat yourself up about this or fear long-term horrors. SOme kids are just this way. My love-handles proudly indicate the extent to which i got over it - i'm a total foodie now! Hang in there hun



Bx