This is the kind of advert that is screaming out to be noticed. Its bold black letters on the day-glo orange shout it out:
However much you eat
However much you eat
You won't get fat!
And don't you just want to know what this wonder food is? So you pop into the shop (a pharmacy, by the way) to find out what it is all about and before you can say 'Cash-till register!', they've got you where they want you.