So my 10 year old is a bit overweight. I wouldn't say he's fat to look at but a bit stocky with some excess fat and it's getting him down. He's noticed he's heavier than his friends and for eg. he did a race the other day and loves running but he came last by quite a way and it got him down.
We're a very active family and I try to give them healthy food with the odd treat. The problem is he's on a steroid inhaler and I think that's not helping (apparently it increases appetite) along with a heel issue that means he can't always do his exercise.
I was thinking of making some changes to his diet but the problem is his 2 brothers are skinny as anything and eat tons- and burn it off! For eg. they always have cereal after dinner/before bed. Now I know they probably don't need it but the other two don't put on weight (cereal is either porridge or weetabix). So I was thinking maybe he should just have plain yogurt or fruit but he's going to feel deprived watching the other 2. I could change the rule for all 3 but what if they're hungry before bed?
Any suggestions?
Also snacks are usually fruit or veg sticks and hoummus. I do make homemade muffins (healthy ingredients) - perhaps I should reduce those for a while. He's pretty fussy about his lunches and the only thing he likes is tuna or chicken sandwiches or boursin with crackers. I add veg sticks, a plain yogurt with a tiny bit of honey and a piece of fruit.
I'm wondering if he just eats too much. With meals like spaghetti, chili or lasagne he loves it so much he always has seconds and if the other two are having it its so hard to say no to him. 
Please no nasty remarks- I nearly didn't come back on here due to some very harsh keyboard warriors!
thanks