My 15 yr old Bengal was diagnosed with IBD although that diagnosis may not be accurate since I didn't want to put him thru the biopsy procedure at this age. He has had regular blood tests, a special blood tests, x-rays, etc. The vet suggested B12 injections since it was low... other results were okay. The vet suggested we try Prednisolone for the inflammation causes by suspected IBD. I've tried to switch him to a novel protein diet but he has always been a fussy eater and that didn't work. And tried probiotics on his food but he's a very smart cat and can tell when something different is added to his food. As for the typical symptoms of IBD, he has never had diarrhea in his 15 yrs... his stools are normal to slightly hard. He rarely ever vomits up food... just clear foam occasionally with a pink tinge if the irritation is bad. Those are the only symptoms he has really... not sure if food allergies fit because he has beautiful fur and no itchy skin or anything, but I suppose there could be internal symptoms of allergies like IBD causes. I'm also concerned about long term use of Prednisonlone since I've read that it weakens the immune system. I'm so stressed worrying about losing my baby... I'd like to hear from others who successfully treated their beloved cats. Thanks in advance.