Prune juice is made from different varieties of plums than the normal plums you get at a grocery store. These varieties are called "prunes". The main difference is that they are freestone plums: the pit is easier to remove. read more
The main difference is that they are freestone plums: the pit is easier to remove. That's obviously useful for dried fruit and juice where you want the pit removed during manufacturing. So "prune juice" is "plum juice", it's just a more precise term, like calling it "Granny Smith juice" instead of just "apple juice". read more
Prune juice vs plum juice has no cholesterol and fat contents in its composition, meaning you will not gain weight if you drink it. What's more, many people include the prune juice in their diet to lose weight. Plum juice has the similar taste like diluted cranberry juice, and it has a brownish color. read more