The Notebook star Rachel McAdams has given up vegetarianism because her diet was leaving her with no energy. The actress found herself falling asleep at a Chris Rock show and decided it was time to change her diet. The 28-year-old was a devoted vegetarian until the incident. She says, "I stopped eating meat for a few years and got so tired I fell asleep during a Chris Rock show - live, front row! "I was like, 'I'm picking up some bacon tomorrow!' You have to be so strict to be a vegetarian. And I'm only human."