Don't Blame Sugar: The Coca-Cola Bottling Company claims that it's not the sugar that's bouncing your children off the walls. "The truth is," they say, "some experts believe, sugar might exert a calming effect." Oh . . . and it's not the caffeine, either.
    
    
Munching on a piece of chocolate-flavoured halvah one day I pondered "This is made of a sesame seed paste - but 