RJ Girlca, in Verdun there's couple of places where you can buy Wellness.
Near 5th avenue, there's a groomer who sells variety of of hollistic foods. Also, check near the Verdun Library, there's a food store there, maybe they sell it.
If you go to Nun's Island, I know there's a little place in the mall that sells it.
I pick up my food on Sherbrooke st.West, a store called Natural Animal or Bark and Fitz.