The formerly pin-thin Kate Bosworth (she was barely 100 pounds) has her Blue Crush body back. Well, almost. She has gained about 20 pounds and seems to have her curves back.

Just 10 months ago, 5′7″ Bosworth was rumored to be anorexic as she was turning heads with her shockingly bony body, which some say began after she starred as a drug addict in the 2003 drama Wonderland.

Then, after her on-again, off-again beau of three years, Orlando Bloom, dumped her last September, she got even skinnier. “I think her troubled relationship was really stressing Kate, 24, to the point that she had no appetite,” a source told Star last fall.

But now that Kate’s in a new relationship with model James Rousseau, who was spotted in Maui with her, Kate Bosworth seems to be sporting a healthy weight gain.

“Kate is looking healthier,” notes NYC body-image expert Dr. Edward Jackowski, who does not treat Bosworth. “She looks like she now weighs about 120,” he says. [via]