Prunes are - rather unglamorously - best known for helping relieve constipation... but experts say they have many other health benefits. Prunes are – rather unglamorously – best known for helping relieve constipation. The dried plums, often eaten on their own or with cereal or muesli, contain fibre and a natural sugar alcohol called sorbitol, which together help keep the bowels moving... [8278 chars]