As long as her energy is up, and her weight loss hasn't been a sudden, new development, I wouldn't worry about it...I also have a skinny albino male -- I call him a furry skeleton -- but this is the way he's always been, and his activity level is normal. He has been to a very knowledgeable ferret vet, too, who said not to worry about his skinniness... I just wish I could give him some of MY extra weight that I don't need! Take care, Chana [Posted in FML issue 4564]