Nature's chewing gum

I can recall as a small boy when out walking with my uncle he asked "do you like chewing gum?" "Yes" I replied " do you have any?" "It's all around us he replied!"

He was referring to the wheat we were walking through.

I you pick a couple of ears of wheat, rub them between your hands and then gently blow away the husks you will be left with the wheat grains.

Chew the grains and after a short time they will change to a consistency almost identical to chewing gum. I assume the is the gluten being released.