Asked about her diet and exercise regime, the 26-year-old leggy blond told French Vogue: “I do nothing! I'm lucky to have a very active lifestyle.
“I'm always running around everywhere... So I don't need to hire a coach or watch what I eat.”
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The naturally slim actress also revealed that she loves chocolate and indulges in it regularly – several times a day, in fact.
“I can't start my day off without a mug of hot chocolate or finishing off the day with a few squares of dark chocolate... It keeps me feeling happy,” she added.
Other than a cocoa-based diet, the statuesque beauty swears by BB creams, revealing that her must-have item is an all-in-one face cream with a minimum SPF 30 in it, which she wears every day.
Blake famously married Canadian actor Ryan Reynolds, 37, last year in an intimate, secret ceremony attended by just 35 guests. The attractive couple celebrated their one-year anniversary in September.