Can anyone give advice or tips for fuelling a very sporty tall 15 year old boy. He is 6" 5 and weighs about 12st. BMI looks normal range. He plays lots of sport but has frequent episodes of fainting after or during sports - which isn't great as he feels awful and is effecting his sport. Have seen the GP a while ago and they said just as he is tall he has vaso vagal episodes. I think he needs way more meat on his bones. I just can't seem to get enough long lasting food in him. Has anyone got some food ideas that may help him put on weight and how often he should be eating. He is very partial to eating crap and I wonder if he is eating too many snacks then not his main meals. Stuck in a cycle!