Sorry to resurect and old zombie thread, but I found this while doing a search on lucazade sport & young children.
My 16 month old son is recovering from severe vomiting / stomach bug, he has spent a day in hostpital on IV / fluid reteplacement.
We have him back home now as all his tests were clear, so his condition is not serious and he he starting to hold his fluids down.
Water is fine for hydration but does nothing to help his blood sugar or salt levels.
So he has had some squash and dilouted lucazade sport, as he refuses to drink dearilite (which is what is normally recomended)
Although the squash and lucazade contain many nasties (aspartame anyone?) they are also rich in glucose and sodium which he desperatly needs to prevent him from beoming lathargic.
Even the Peadiatrician has supported giving him these drinks, until he can start eating solids.
So im just supporting those that have already said: there are special circumstances for such things and we shouldnt be too quick to judge.
Under normal (healthy) cirumstances, we would never give him such artifical drinks, the only drinks our son ever gets is water, his formula milk and very VERY occasionally some tropicana - since getting them used to any sweet drinks so young only builds up there reluctance to drink water, which is best thing for them to drink, period.