My female cat is about 5 years old and spayed. She is sharing the home with another female cat and my two dogs. From August I have been fostering another dog for a welfare organisation. He is not used to cats and chases them although it is much better now. The problem is that my cat seems to be losing weight although she eats and drinks normally. She gets dewormed, deflead and deticked monthly. She was at the vet last month for her yearly exam and she weighed 4 kg which the vet said is normal but she still seems very thin to me. They eat Royal Canin for fussy cats and also get +- 4 pouches of Whiskers a day. Are there any other supplements I can give her? I assume it is the new doggie''s presense in the house although she does not seem to be too fased by him.