Exhausted Jools Oliver left holding the baby as Jamie's hectic schedule keeps him busy

Jools Oliver may have recently ordered her husband to take care of the children on weekends but it appears the time off has done little to boost her energy levels.

The mother of three looked exhausted when she took baby daughter Petal for a walk in the park.

Coffee in hand, Jools carried her daughter on her chest and it appeared not even the caffeine, or the company of her mother, was enough to perk her up.

Jools Oliver

Girl time: Jools Oliver takes a stroll in Primrose Hill with Petal and her mother

Dressed down in leggings and trainers, the former model's hectic schedule however  seems to be helping her maintain her figure.

The slim author has shed her baby weight in just six months.

Jools, 34, and her celebrity chef husband Jamie Oliver recently agreed on a childcare schedule so that she has a couple of days R&R a week.

The weekend is Jamie's shift.

He said: 'I used to work seven days a week until Poppy was born,' he says.

'Then Jools said, "Right, Mondays to Friday are yours, the weekend's mine."

'Anyone looking after three kids knows it's hard. Being rich makes it easier.'

Jools Oliver

Baby's day out: Jools looks after her three children during the week and husband Jamie Oliver steps in to help on weekends

Jools Oliver

Slim: Jools' schedule appears to be heling her maintain a lean physique

After admitting that his workload had driven his wife to the brink of despair, Jamie found a solution when he filmed his latest TV series in America.

He spent almost £70,000 jetting back and forth between London and the U.S. to be with her.

Rather than make the six-part series Jamie's American Road Trip in one go, he insisted that he never spent more than six days away from pregnant wife Jools and their daughters Poppy Honey, seven, and Daisy Boo, five. 

Jamie Oliver

Happy family: Jools with husband Jamie after the birth of Petal in April

Because he also wanted to be able to care for Jools, who gave birth to their third daughter, Petal Blossom, in April, the series took eight months to film, beginning in November last year and finally ending in June.

Jamie, 34, met Jools, in 1993 and they married seven years later.

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