This is tricky. My son is just overweight on BMI using NHS calculator and daughter is about one cupcake away from being it. They both "look" fine. Wear clothes for their age, etc.
But I am aware, without giving them a complex, that I have to watch their intake.
When I increase their activity they seem to just demand more food to compensate. If I say no they seem to visibly suffer. They love fruit and veg, we literally never have crisps, white bread, fried stuff, oven nursery food, nothing like that, and sweets are when they come home from school or the occasional treat, which they don't seem to demand any more than any other thing they like (like fruit).
Parents of rib baring lanky types probably assume I feed them McDonalds regularly and milkshakes for a snack, I don't.
They were both worryingly fat babies on milk alone.
Both are unusually tall for their age (like a head above the average child in their class) so I cling on to this hope that they are just "there early" and if they just maintain they will be okay.
I was the same and if someone told me at age 12 "this is the tallest you will get and if you just maintain this weight or thereabouts into adulthood that will also be fine" I would have been okay but nobody said that, it was all doom and gloom, and the result was a plethora of issues.
Boo.