Nicole Richie's Super Skinny Frame Reignites Fears For Her Health

Nicole Richie’s shockingly frail frame has friends concerned for her health once again after she’s appeared looking like skin and bones lately.

The 31-year-old Fashion Star mentor wore a strapless red dress to the Valentino Fashion show in Paris on March 5, and a new report in Star magazine says her friends are fearful that she’s getting too thin.

Nicole sought treatment for anorexia in 2006, and according to Star, there are concerns that she may have relapsed.

“She looked unbelievably thin,” one observer told the magazine about Richie's skinny figure, which included a protruding collarbone and stick-thin legs.

For exclusive details on what is stressing Nicole out, including her husband’s work out of the country -- and what pals are planning to do the help their friend in need, pick up the new issue of Star magazine -- on newsstands Thursday.