The pop superstar - who pays tribute to her "incredible" love-life with Guy
on her forthcoming album 'Hard Candy' - was not happy when the British
director's libido took a nose-dive after he substituted breakfast and lunch
for low-calorie biscuits.
She said: "My husband went on that cookie diet and it was such a turn-off
because he didn't want to have sex. He's not on it anymore, thank god!"
Despite her complaints about the side effects, Madonna admits the 800
calorie-a-day diet - which also counts Kelly Clarkson and Jennifer Hudson
among its followers - was a success.