Sauerkraut juice for parasites

I just got a copy of the book: Making Sauerkraut and Pickled Vegetables at Home. On page 41 it recommends taking 1/2 cup of sauerkraut juice in the morining on an empty stomach, and 1/2 cup juice before each meal to remove worms. This is the first time I've heard about this. Have no idea if this will work with store-bought sauerkraut.