When treating a hypo you can get even faster rise in bg's if the
glucose doesn't have to go to the stomach first. There is some
absorption of glucose just in the mouth.

But I doubt that the sellers of this product are trying to push it as
an alternative to glucagon (they don't say they are, at least, it's
packaged more like a nutritional supplement rather than an emergency
treatment.) When I've gone low enough, the EMT's tried putting the
medical equivalent of cake frosting in my mouth but that didn't work so
they went to glucagon instead.

Even though I was unresponsive I actually have a vague not-really-there
memory of the EMT's coming in and  trying the frosting, and thinking
that it tasted awful!

Tim.