Drinking vinegar, daily- is the secret to longevity throughout the Applacian Chain. Just ask any octegenarian in the hills about it.
They'll say thier mom made 'em drink it, sayin it was good for 'em.
Been doin' it ever since!
The apple and grape juice seems to be a way to get it down more easily- and have good properties of thier own, according to some vegan and health food fanatics.