Kirstie Alley has been praised for her weight loss on this season's Dancing With The Stars, but are her eating habits getting dangerous? The actress fell twice in rehearsal this week (see video), telling partner Maksim Chmerkovskiy that she felt like she was going to pass out.

Then, Alley revealed that she'd only eaten about 150 calories so far that day, and was only eating 1,400 calories a day total on average.

But do less calories translate into higher scores? The duo performed well, receiving a two 9's and a 10 from the judges. Judge Bruno Tonioli told Alley, "Your body is shrinking, but your talent is huge!"

After their performance, Chmerkovskiy again expressed his distress. "She's not eating," he said. "She's not eating." Alley's explanation? "I forgot," she said.

Speculation is that Alley has gotten down to a size 6; she addresses her size after DWTS rehearsal in our video.

The actress was making plenty of waves on last night's episode; she also accidentally yelled "s***" during the judges' critiques! Check out the video after the jump, and see our gallery for pics of Alley leaving Katsuya in Hollywood Monday night - hopefully she had something to eat!