Nigella Lawson reveals the secret of her slender new figure Since Nigella Lawson appeared in public with a noticeably more slender figure, her admirers have been desperate to know the secret of her slimming regime. Now, the "Domestic Goddess" has decided to end the mystery: she has lost weight because she has not appeared filmed a television series for two years. "There's no miracle diet," she tells Mandrake. I just always put weight on in filming years - it's the stress, and then I lose it again in non-filming years. That's how it always goes, and why I've lost some. Speaking at the launch of Can We Still Be Friends, the debut novel by Alexandra Shulman, at Sotheby's in Mayfair, Lawson, 52, adds: "When I film, I eat with the crew, eating the same size portions as my cameramen, forgetting that, unlike them, I'm actually in front of the camera." The cook will return to her more voluptuous shape this summer when she appears on the small screen again. "So long as I finish my book, there should be a new series that starts in August, but the recipes will be as they ever are," she says.