Sauerkraut juice can be purchased at many discount and health food stores. It can also be prepared at home. Simply buy (or ferment yourself) sauerkraut. Then pour a small amount of water over it ...
“The best sauerkraut for probiotics and for gut health is any type of raw (unpasteurized ... and/or “unpasteurized” on the label. If you buy the pasteurized kind that isn’t refrigerated ...