The Hollywood star first starred as an awkward bachelor in the romantic comedy film franchise in 2001, where she had to earn 30 pounds (2.1st) for the role. She was reportedly asked to “not count the calories” she consumed daily in order to gain weight for the role.
She would eat foods high in fat and carbohydrates such as burgers, pizza, chocolate, milkshakes, and French toast in order to achieve the required goal.
It has been estimated by some publications that she consumed 4,000 calories a day.
But in 2016’s third and final film, Bridget Jones’ Baby, her character had shrunk considerably.
But how did she do it?
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She is also known to have experimented with The Zone, Hamptons and Atkins diets.
The Zone Method allows people to eat three meals and two snacks a day, each of which is a low-fat protein blend, such as skinless chicken, turkey, or fish.
It also includes carbs, which are mostly fruits and vegetables, and a small amount of good fats, like olive oil, almonds, and avocado.
According to Healthline, the Zone Diet instructs its followers to “stick to a specific ratio of 40% carbs, 30% protein, and 30% fat.”
She dropped two dress sizes by watching her portion sizes and participating in regular aerobic exercise, and the actress revealed the importance of fitness in her regimen.
Renée said: “Wherever I move, wherever I am, or whatever phase of my life, the gym is my common denominator.
“I’m moving to LA? I’m finding my gym. I’m coming to Santa Fe? I’m finding my gym. In New York? I’ve found my gym,” she told the MailOnline.
In October 2008, the actress told SELF magazine that she hits the gym six days a week for cardiovascular exercise.
The following year, she explained that running was “the biggest outlet” of her life: “It’s my loneliness, and I need it,” she said.