Cat dandruff tends to happen around the lower back/base of the tail
area when a larger cat has trouble grooming herself down there.  Less
grooming means less spreading of the skin's natural oils; therefore
skin in that area becomes dry and creates dandruff.

Nocturne's dandruff is almost gone since we started brushing her
daily; the brushing action takes the place of the cat's tongue in
distributing those oils.

--Enfilade

Hi there,

Our vet says adding Omega 3 oils to the diet will help. She suggests
adding fish oil (can get it in capsules) to their food.

Rhonda