'Adrift' star Shailene Woodley reveals she maintained a 'miserable' 350 calories a day diet for film

Shailene Woodley maintained a strict diet to portray real-life sailor Tami Oldham Ashcraft, who was lost at sea for 41 days after a storm ravished her sailboat. (STXfilms via AP)

Shailene Woodley has revealed that she ate next to nothing for her most recent role in the film "Adrift."

The 26-year-old star confessed in a recent interview with The Times that for her role as real-life sailor, Tami Oldham Ashcraft, Woodley lived off a 350 calorie a day diet to mimic the 41-days she was lost at sea. The actress said in order to maintain the strict diet, she would eat the minimal amount of food and skipped dinner, but it wasn't easy.

"I can't sleep when I'm hungry, so I would have a glass of wine to basically pass the f--- out," Woodley confessed. "For the last two weeks I had a can of salmon, some steamed broccoli and two egg yolks every day."

In the summer of 1983, at the age of 23, Ashcraft and her boyfriend,  Richard Sharp, were left adrift on their yacht after being caught in a storm while sailing at sea. According to People, Ashcraft survived at sea for 41 days on a diet of peanut butter and determination during her 700-mile journey to the nearest point of land in Hawaii.

Following her adrift experience, Tami wrote a memoir tited, "Red Sky in Mourning," and eagerly waited for a film adaption of her book for more than 30 years.

Woodley stars in the flick alongside Sam Claflin who portrays Sharp.

"I don't know that I could do it without Sam," the star admitted. "We both really were there for one another in our moments of extreme exhaustion and hunger."

Woodley and Ashcraft pose together for the film's premiere. (AP)

In another interview with The New Paper described the tedious hours she worked with her British co-star and said, "We were working extremely long hours out on the open sea. Sam and I were losing quite a bit of weight as we weren't eating much. "

She continued, "So not having the fuel to run you physically, along with the emotional complexities that were incredibly taxing at times, mixed with the physicality, it could have been a grueling experience."