Stephen Fry has said he feels “relieved” after shedding more than five stone since April.
The broadcaster, 61, attributed his weight loss to long walks and eating sensibly.
He told BBC Breakfast he is proud of his makeover.
Fry said: “At the moment I’m very happy, there is the vertical moment and the horizontal and at the moment I’m very happy, I’m happily married.
“I’ve lost a bit of weight so I’m feeling proud of myself.
“I was overweight, I have lost five and a half stone. I was 21 stone nearly, in April I was that heavy.”
He added: “I walk a lot and that helps my mood as well I find, it’s not a guaranteed help for mental stress and anxiety or anything else but it does help me and it means I can listen to audio books as I walk, and podcasts, and you eat up the miles that way, and talking of eating up, eating sensibly.”
Asked if he feels good when he looks in the mirror now, he said: “I’m relieved.”
Last year Fry, who married Elliot Spencer in 2015, revealed he had his prostate removed after being diagnosed with cancer and issued a plea for “men of a certain age” to get tested for the disease.
He is about to embark on a UK tour with his show Mythos: A Trilogy, in which he tells stories of the Greek myths.