How She Got Involved: Actress Lisa Edelstein was always a picky eater, ever since she was a litter girl. "I was raised in a kosher home, and if you're raised with a food restriction, it's not that difficult to have another kind of food restriction," said told Prevention magazine. After deciding to adopt a vegetarian lifestyle at 15, Edelstein learned how she wasn't just positively affecting her body, but was also making a big difference in the environment. "The meat industry is really toxic to the environment. We need to pull back as a culture as much as we can."