During a recent shopping with pal Mischa Barton, she again shocked onlookers when her skin-tight orange dress revealed a concave chest and protruding hipbones.
The star, who had appeared to have gained a few extra pounds in recent months, now looks to have dropped back down to a worrying low.
Reports were circulating in the US that she had briefly checked into California's Beau Monde Treatment Centre.
Her publicist said: "She is not in rehab she is at home in Glendale. Sobriety is an ongoing process but she is sober".
Last year, the 25-year-old confirmed that she had sought help for what her spokesperson called an inability to put on weight, but denied it was treatment for an eating disorder.
Article: Dailymail