I have used Nordic Naturals Omega-3 Pet in Riley's kibble in the mornings.
A lot of different places sell it online. I used to get it at Wholefoods
and recently got it at a pet boutique near my place. They have it in
liquid form as well as gel pills that you cut open and squirt on.
NORDIC NATURALS :: NORDIC PET :: PROFESSIONAL
I have also rubbed Nutiva organic coconut oil on his tummy... or put
a few drops in his food. I got it at the GNC.
I have not had to do ANY of this since I switched him to Grain Free Canine Caviar,
which was on August 2nd!!
http://mycaninecaviar.com/