Jenny McCarthy (born November 1, 1972) is an American model, comedian, actress, author, activist, and game show host. Jenny McCarthy began her career in 1993 as a model for Playboy magazine and was later named their Playmate of the Year. Jenny McCarthy then parlayed her Playboy fame into a successful television, film and acting career. Most recently, Jenny McCarthy has written books about parenting, and has become an activist promoting the claims that vaccines cause autism. More specifically, Jenny McCarthy bolsters the notion chelation therapy helps cure autism—both of the aforementioned claims are considered unsubstantiated by the medical community.