Rachel McNally was a contestant on Ramsays show Kitchen Nightmares programme in 2007.
Her eatery Piccolo Teatro that cooked vegetarian meals in Paris was losing around 70,000 pounds a year.
Super chef Gordon Ramsay promised to turn the restaurants horrendous food and bad attitude into a success.
But Rachels eating joint was shut down leaving her penniless.
Gordon did absolutely nothing for me, so instead I decided to swap my restaurant for life as a hooker. We were losing something like 6,000 a month and just couldn't balance the books. It became more chaotic after he turned up, the Sun quoted her as saying.
"He was a right flirt, showing as much interest in impressing me as sorting out the kitchen. Every time we went for a drink or took time off he'd be leering - or moaning about something, she added.
After Rachel sold her eatery in the court she took a flat at Montparnasse.
I enjoy sex and was turned on by the idea of selling my body for money, so it wasn't much of a hassle, said Rachel.
Its a great way to make money. I charge around 200 a time, and getting business is no problem at all. If they have any kinky suggestions, I might charge a bit more, she added.
Rachel has even used her nightmare TV appearance to get business by sending videos to potential clients.