Kelly Osbourne is still no closer to finding out what caused a seizure, nearly two months after she collapsed on the set of her Tv show.

The reality Tv star, daughter of Ozzy and Sharon Osbourne, was admitted to hospital in Los Angeles in early March (13) after she suffered a frightening health scare while filming her small screen style series Fashion Police.

Doctors later concluded Osbourne had suffered a seizure, but the star admits she still hasn't been given an official diagnosis and has no clue what brought it on.

She tells the Sydney Daily Telegraph, "I still have absolutely no idea what caused it. But if there was something positive to come out of it, it's that I've started looking into what might have happened and what different foods do to your body and it's made me an even healthier person."

Osbourne is now considering cutting out tea, coffee and fizzy drinks after hearing that caffeine could be a factor, adding, "Some say caffeine can have a certain effect on you so it's things like that (I've learned). I don't want to be a sob story and make it sound like I want people to feel sorry for me or something (but) it was completely terrifying.

"What most people don't know is everyone will experience some sort of seizure in their life. Mine just happened in front of everybody."