The 61-year-old television host underwent a gastric bypass procedure in 1999 after spending years battling with her weight, reported Entertainment Tonight.
"I felt like such a cheat when I had that band on my stomach. It makes you vomit the whole time. Nothing goes down because it goes out," Sharon said.
The former 'X Factor' UK judge - who is married to Ozzy Osbourne and has children Aimee, Kelly and Jack - now controls her weight by sticking to the low-carbohydrate Atkins diet, but she says she still has ''cheat'' days.