Given the task definition and input, reply with output. In this task, you're given a review from Amazon's food products. Your task is to generate a short summary of the given review in the input. Note that you don't need to write a complete sentence as a summary.

I had to pick up a grocery store brand after running out of our regular Innova dog food. I fed this to my 160lb dog for a week and could not believe the amount of waste this brand produced! He was going up to 10 times a day! Unbelievable! This just goes to show how much filler is in this food. Would never recommend.
Horrible