All I have is Science Diet for Seniors. I tried the hairball stuff and Tubby became constipated so I had to stop that. They get their treats as treats, but Tubby's delicate tummy doesn't allow for much else besides that.

And TC/Arizona, might I suggest donating the food that you won't use instead of throwing it away? I'm not 100% sure they will take opened bags, but I would sure call and ask before throwing it away. Shelters can always use extra food.