Sources say Demi is seeking treatment for substance abuse after being rushed to a Los Angeles hospital at 11:21 p.m. PST on Jan. 23.
As a result, Moore, 49, has pulled out of a project to play feminist Gloria Steinem in a biopic about porn star Linda Lovelace.
Moore Has Gotten Rail-Thin Since Divorce
Moore, who married actor Ashton Kutcher in 2005, filed for divorce in November 2011 after Kutcher, 33, reportedly cheated on her with a bevy of 20-something bikini babes.
Sources say Demi’s insecurities over the couple’s 15-year age difference fueled the divorce. Moore, who has a toned, lean physique that women half her age would envy, has been open about her obsession with youth and beauty.
“I have had a love-hate relationship with my body,” Demi said recently. “When I’m at the greatest odds with my body, it’s usually because I feel my body’s betraying me, whether that’s been in the past, struggling with my weight and feeling that I couldn’t eat what I wanted to eat, or that I couldn’t get my body to do what I wanted it to do.”