They appear to have it all: money, great careers and men drooling at their feet. But Hollywood’s leading ladies may be willing to risk everything they have — including their health — to become thinner.

Just weeks ago, Nicole Richie — who in 2006 was under a doctor’s care for her eating issues — looked like the picture of post-pregnancy health. But when the new mom, 26, stepped out in LA on March 26, her appearance shocked onlookers: Her skinny jeans were loose on her!

Meanwhile, Katie Holmes, 29, and Victoria Beckham, 33, at Madeo Restaurant in LA. which is known for its decadent pastas, didn’t indulge during a recent dinner together. In fact, the two split a meal meant for one person, sharing a green salad sans dressing, one piece of fish and one side of steamed spinach. They also ordered one regular Coke and two glasses of ice. “Katie poured half the soda into each of their glasses, then filled up the rest with bottled water,” says a Madeo regular. “They do it all the time. It’s how they control calories.”

And Nicky Hilton, 24, recently stated, "It’s really not that interesting or true,” refering to the reports that she suffers from an eating disorder. Although her rep denies Nicky has any eating issues, the socialite drank her meal while on a recent dinner date with boyfriend David Katzenberg, says an onlooker who saw the couple at the Four Seasons in LA. She barely touched the food on her plate.”

For more dirt on Hollywood’s skinniest stars, pick up the latest issue of Life & Style, on newsstands now!