Jamie Oliver has said the collapse of his restaurant business was "very, very painful".
The British celebrity chef's restaurant chain suffered 22 closures and about 1,000 redundancies.
He said that despite the pain of watching two decades of work crumble, he has no regrets about an approach to the restaurant trade which "employed loads of people" but was difficult to sustain.
Oliver said he did everything he could to make his business a success, and the collapse into administration was not unique.
Oliver has described the experience of his chain's collapse as: "Very painful, very very painful. This is the part of my life that I've been building up for 20 years."
The star, who rose to fame as the "Naked Chef" before building a large empire of restaurants, TV shows and cook books, is proud of what he achieved.
"Obviously it's been tough but, you know, no regrets really. I did everything I could.
"I created something really magic, did amazing things, employed loads of people, bought only through food systems that were really positive.
"We made it, we whooped everyone's ass, and then, you know," he said.
"I just couldn't make it last sustainably, and there's a million reasons, that I've said a million times, as to what our challenge was, but I lost this time.
"What happened to me was not unique - it's been happening to small, medium and some large businesses all over the country."
Oliver added that caring about ethical sources of food and fair treatment of staff was not a lucrative business model.
"In business... it's not a level playing field."