Haven't tried this,but I will.

Nice to see that apple cider vinegar is catching on again. I've been taking it for years for arthritis, a tablespoon of vinegar, a teaspoon of honey in a glass of luke warm water every morning. It works really well, doesn't repair damage already done but prevents further damage. It is reputed to "melt" the hard deposits in the effected joints & because it is a diohretic it reduces the amount of uric acid in the surrounding tissue (so it's good for gout & rheumatism too.). I sometimes need to "top-up" with an anti-inflamatory, but otherwise relatively pain, swelling & deformation free.