Rachel Meltzer Warren is the author of The Smart Girl's Guide to Going Vegetarian (Sourcebooks, 2014) and A Teen's Guide to Gut Health (The Experiment, 2017). She is a registered dietitian and nutrition writer, educator, and counselor. Her work has been featured in Women’s Health, Prevention, Good Housekeeping, Whole Living, and many other print and online publications. Rachel lives in the New York City area with her family.