Jane Kirby Jane Kirby, RD is a registered dietitian and member of the American Dietetic Association. With over 30 years of experience in the food industry, Jane is the author of six books on the topic. She is a former food and nutrition editor at Real Simple. Her work has appeared in American Health, Fitness, and Eating Well, among others. About Real Simple Real Simple, a Dotdash Meredith Brand, is an award-winning, trusted online resource for smart, authentic solutions to simplify your life. We reach 11 million readers a month. Our content is written by experienced journalists and fact-checked for accuracy. Learn more about us and our editorial guidelines.