Some people, especially kids, may not like how prunes taste. In these cases, you can mix prunes or prune juice with other juices rich in soluble fiber and insoluble fiber, sorbitol, and sugar. The best fruit juice choices are apple juice, pear juice, cherry juice, and pineapple juice. You can also blend prunes to create smoothies with fruits like dates, apricots, peaches, nectarines, lychee, and berries.