In The Happy Vegan, Russell Simmons shares how once he started practising yoga and meditation, he became more conscious of his choices, particularly regarding his diet. Simmons first adopted a vegetarian and then a vegan diet, and almost immediately began to experience the physical, mental, and emotional benefits of eating green and clean. He delves into research about mindful eating, the links between stress and poor eating habits, the importance of listening to your body, the well-documented problems associated with eating animal products and processed foods, along with tips on how to transition to a vegan diet.