Why do old people drink prune juice?

Prunes are a good source of fiber, potassium, and vitamin C. They are also a natural laxative, which can be helpful for older adults who may be prone to constipation. Prunes are also a good source of antioxidants, which can help protect the body against damage from free radicals. Additionally, the potassium in prunes can help lower blood pressure, and the vitamin C can help boost the immune system.