From this study, by Phd researchers, red wine or dark grape juice would seem to help prevent disc degeneration.
"Conclusion. Resveratrol is a potent anabolic mediator of bovine IVD cartilage homeostasis, revealing its potential as a unique biologic treatment to slow the progression of IVD degeneration. These data suggests RSV may have considerable promise in the treatment of disc degeneration."
The Action of Resveratrol, a Phytoestrogen Found in Grapes,... : Spine