Evidence-Based Nutrient Recommendations



VeganHealth.org provides:

  • Reviews of the scientific literature related to the health benefits of a vegan diet.
  • Discussions about concerns related to vegan nutrition.
  • Recommendations for nutrients that can be low in the diets of some vegans.


Reed Mangels, PhD, RD, FADA

Reed Mangels, PhD, RD is a nutrition adviser for the national, non-profit Vegetarian Resource Group and the nutrition editor and columnist for Vegetarian Journal. She is the co-author of Simply Vegan (with Debra Wasserman), The Dietitian’s Guide to Vegetarian Diets (with Ginny Messina), and the Everything Vegan Pregnancy Book. She speaks and writes about vegan nutrition. Reed received her BS in Foods and Nutrition from Florida State University, her MS in Nutrition from Case Western Reserve University, and her PhD in Nutrition from the University of Maryland College Park.

Ginny Messina, MPH, RD

Ginny Messina, MPH, RD is the author of several books on vegan and vegetarian nutrition including Vegan for Life, co-authored with Jack Norris, and The Dietitian’s Guide to Vegetarian Diets, co-authored with Reed Mangels. She speaks and writes on vegan nutrition for both the public and health professionals, and serves as a consultant and advisor to a number of vegan and animal rights organizations. Ginny earned her degree in nutrition and dietetics from Rutgers University and her MPH from the University of Michigan.

Jack Norris, RD, LD

Jack Norris, RD is the executive director of Vegan Outreach, an animal protection nonprofit promoting vegan eating through their 10 Weeks to Vegan program in over 50 countries. Jack has been a registered dietitian since 2001; he holds a degree in nutrition and dietetics from Life University and performed his dietetic internship at Georgia State University. In 2005, Jack was elected to the Animal Rights Hall of Fame. Jack co-authored the book, Vegan For Life, with Ginny Messina; the 2nd edition was published in 2020. Jack was a Division 3 All-American pole-vaulter in college, was on a national champion great grandmaster ultimate frisbee team, and now is an avid pickleball player. He lives in St. Petersburg, Florida.

VeganHealth.org is a project of Vegan Outreach.