I just wanted to thank the girl who posted about the Wellness Core food, it literally saved my cat's life! I am a HUGE cat person and have rescued numerous cats and currently have 8 (5 inside and 3 that are inside/outside and live in the catroom basement). My favorite cat Lulu was diagnosed with Megacolon after being severely constipated and even being put under to have it removed, only to have to be admitted to the vet two weeks later for the same reason and given 8 enigmas until she finally got cleaned out!!! The poor thing She was then diagnosed with Megacolon and I was devestated. My vet is fabulous and has always shown me things I could do at home myself rather than stressing my cats out by bringing them to her, like doing my own IV with salines for Subcu fluids, etc. For Lulu, she was going to need weekly (or more) enigmas probably for the rest of her life, since the condition doesn't typically clear-up. I knew surgery was an option, but that was the last option for me to put her through that. So my first step was to change her diet. She was on canned Friskies her entire life (she's 5), so I did what my vet recommended and purchased the Hill's Science Diet for fat cats, the Metabolic lol. She was cleaned out so it was a clean slate to really test if this food would work. It didn't and I was again devestated about 4 days later when she was straining to go again and couldn't. This is when my best friend emailed me a link to this forum and I read the post about someone saying Hill's didn't work and to try Wellness Core. So that very day I drove 45 minutes to the nearest Petco and purchased a case of the canned Core. I also mixed in Miralax, which was vet recommended from the beginning. IT WORKED!!!! She actually was able to go on her and crossing my fingers as I type this, she still has been going on her own like she's normal!!! I was shocked and thrilled and even told my vet who was going to recommend that from now on for Megacolon cats!!!! So I wanted to post this and send a huge shout out THANK YOU to the girl who posted about Wellness Core, you saved my cat's life and I can't thank you enough.