Diane Keaton binged on 20,000 calories a day while suffering from bulimia

She secretly suffered from bulimia for four years while in her twenties.

And Diane Keaton revealed she used to binge on 20,000 calories a day while appearing on Friday's episode of The Dr. Oz Show.

A typical dinner for the Oscar winner was 'a bucket of fried chicken, several orders of fries with blue cheese & ketchup, a couple TV dinners, a quart of soda, pounds of candy, a whole cake, and three banana cream pies.'

Recovering bulimic: Diane Keaton revealed she used to binge on 20,000 calories a day while appearing on Friday's episode of The Dr. Oz Show

A typical dinner for the Oscar winner was 'a bucket of fried chicken, several orders of fries with blue cheese & ketchup, a couple TV dinners, a quart of soda, pounds of candy, a whole cake, and three banana cream pies'

Despite her naturally svelte figure, the 68-year-old actress literally felt like she was obese while grappling with the disease.

Diane recalled: 'It was horrible. It was, of course, the lowest point of my life...I was a fat person, I was an obese person, who had somehow tricked myself and managed to hide it. So when you're living with a lie for four years.

'All I did was feed my hunger, so I am an addict. It's true. I'm an addict in recovery, I'll always be an addict. I have an addictive nature to me.'

'I was an obese person, who had somehow tricked myself and managed to hide it': Despite her naturally svelte figure, the 68-year-old actress literally felt like she was obese while grappling with the disease

Started on the stage: Keaton's bulimia began at age 22 when she was ordered to lose 10 pounds for Broadway's Hair, and she refused to disrobe during the musical's nude Act I finale

Keaton's bulimia began at age 22 when she was ordered to lose 10 pounds for Broadway's Hair, and she refused to disrobe during the musical's nude Act I finale.

After seeing an analyst five days a week over a year, the Annie Hall actress suddenly decided to stop compulsively eating and never did it again.

'Now it's [my addiction is] work orientated or trying to raise my children as best I can, even though they're teenagers and not really children anymore,' Diane said of her adopted brood - Duke, 13, and Dexter, 18