A book inspired this actress to become a vegan. In an interview with Shape, Mara said, “I decided to go vegan after reading a book called The Beauty Detox Solution by Kimberly Snyder. It’s about how our bodies are not meant to digest animal products and what we should be eating instead. It made a lot of sense to me. I’ve always had a pretty sensitive stomach, but when I cut animal products out of my diet, I felt so much better.”