In a recent interview with The Sunday Telegraph, the 55-year-old actress said she was 20 when she moved to Los Angeles and met a couple who acted like "personal trainers."
“They worked with weights and put people on diets. Their thing was vegetarianism,” she said. “They were very controlling. I wasn’t living with them but I was there a lot and they were always telling me I needed to come more. I had to pay for all the time I was there, so it was financially very draining.”
The couple believed in breatharianism -- the idea that followers should try to move beyond veganism.
Though Pfeiffer is still a vegan, she said she realized she was in a cult when she met her first husband, actor Peter Horton. He was working on a film about cults at the time when she had the epiphany: "I was in one."
Celebrity Breakups and divorces of 2014 [PHOTOS]