I started with 2 prunes for my Beagle. I now give her one prune daily and no scooting. I have to try to figure out how to get my cat to eat them since she has a scooting problem now.
A few years ago, German shepherd was very smelly and vet had to express his anal glands. After the 2nd trip to the vet in less than a year, plus the fact that the dog greatly dislikes going to the vet, did some research on Internet and found out someone recommended prunes. I give my 88 lb dog 2-3 prunes per day and have had absolutely no problems since. Was concerned that prunes might be in the same family as raisins (which are toxic to dogs) and possibly toxic but have not been able to find definite information. If there is a problem with giving dogs prunes, I would appreciate if someone would post something to that effect.