I have a 4 year old female tortie! I've noticed when petting her some dandruff in her fur. I brush her about once a week and she grooms herself regularly. She is not overweight. I feed her Taste of the Wild dry food and Royal Canin Digest Sensitive wet food daily. I read online it could be due to a lack of omega 3 in her diet.. Are the types of food i'm feeding her lacking in this department? Any suggestions on how I could maybe increase her intake of omega 3/ any other ideas what might be causing this? She goes to the vet regularly for check ups. Last check up was about 4 months ago and everything was clear according to the vet.