As more people turn to a vegan lifestyle, Dr. Partha Nandi explores the pros and cons of a plant-based diet. He talks with a married couple who made the decision together to become vegans. Plus, a nutritional expert explains the health benefits of veganism, along with the medical issues that can arise in some people who try a plant-based diet. A woman tells why she went vegan after giving birth to her son, and a vegan coach gives helpful tips on how to change your eating habits.