The Apple Cider Vinegar MUST have what's called "Mothering" in it.
Mothering show as making the vinegar look cloudy at the bottom of the bottle.
Available at a good Health Food Store. Heinz won't do; Braggs is a good one.
Also said to help with proper PH Balance.
I read that book about the Vermont people; but remember, those folks were
farmers and herdsmen and worked Hard all day doing farm work; they didn't sit
on their tushes in front of computers.
Jarvis's book Folk Medicine was/is a great book by the way, worth anyone's reading,
and can be found on the Internet, at Used sections of sites like Amazon.com.
I use ACV in making sweet and sour cucumbers, cole slaw, salad dressings with
olive oil, etc. I haven't been able to just drink it down in a glass of water.
Wish I could but just tooooo sour for me.