All I know is if I give my kids any type of sugar, even from something I bake myself they go crazy. As what David says in his books about the sugar high and low. I think that before eating sugar, kids are at a sugar low, when they eat the sugar they get that sugar high, so they have heaps of energy. We all know some of the stuff that kids eat these days are loaded with sugar. I don't think the effects on adults are the same as kids. Take my daughter for example, she is quite tiny, only 16kgs and turning 5 next year. If she ate say a piece of cake, like a packet mix one, Green's brand moist vanilla has a whopping 24g of sugar for just 1/12 of a slice which is only 65g. I think this amount of sugar in 1 hit for 1 kid is too much for their body to handle and too much energy at once. If I ate the same piece, I'm currently 76.9kgs, it wouldn't have the same effect because my body is well slightly bigger then 16kgs. That's my way of thinking anyway. I've been giving my daughter dextrose and although she gets that burst of energy it's not too much for her body to handle and she doesn't go as crazy.