Kirstie Alley is well-known for her yo-yo dieting, having successfully lost weight in the past only to gain it all back later. After dropping 100 pounds since coming in second place on last season's "Dancing with the Stars," the 60-year-old says she's determined to stay fit going forward. 


"When I hit that [100-lb.] mark, I went, 'That's it!'" Alley told People this week. "I have more energy than I've ever had in my whole life."


The former "Cheers" star says she hit 230 pounds two years ago and realized that something had to change. "My body had gotten really weak," she said. The secret to her success? Switching to an organic diet and following her own wellness program, Organic Liaison


"There was nothing positive about being fat," she said, now weighing in at a healthier 130 pounds. "Now I feel back to normal. I have my game again."


Speaking of game, Alley is planning to use her new svelte frame to potentially find the love of her life. "I didn't want to have fat sex," she said. "For the first time in my life, I know exactly what I want in a man. I want someone who has my back, who is courageous and brave."

Michael d'Estries ( @michaeldestries ) covers science, technology, art, and the beautiful, unusual corners of our incredible world.

Kirstie Alley loses 100 pounds on organic diet
Actress says she feels 'back in her element' after dropping from a size 14 to a size 6.