I recently watched "Fat, Sick and Nearly Dead 2", a documentary done by Joe Cross about his process of going from an overweight unhealthy guy to being a promoter of a healthy diet by juicing and a focus on a plant-based diet. It's a great documentary and I encourage you to watch it and see what you think!
You can also learn more about Joe Cross and follow his work and information at this website: RebootWithJoe
Enjoy!