Does structured water provide young children with more energy?

I tried replacing our daily regular tap water with structured water this summer, and I swear my two boys got more energy! Come 6 pm, they're still running around like it's 3 'o clock in the afternoon. And sure, they're typically hooligans, but still being energized this late has me stumped. Could it be the water quality? Has it got more nutrients in it or something?