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Want to increase your healthspan? Learn how a single lifestyle modification—changing what you eat—can dramatically improve your quality of life and result in sustainable, lasting health benefits. Based on over a decade of research and longevity analysis, authors and leading plant-based nutrition experts Julieanna Hever and Ray Cronise introduce a revolutionary way of eating designed to help you lose weight, reverse disease, and achieve optimal health.

About Authors

Julieanna Hever MS, RD, CPT, The Plant-Based Dietitian, has a BA in Theatre and MS in Nutrition, bridging her biggest passions for food, presenting, and helping people. She has authored five books, including the brand new Healthspan Solution, Plant-Based Nutrition (Idiot’s Guide), and The Vegiterranean Diet, plus two peer-reviewed journal articles on plant-based nutrition for healthcare professionals. She was the host of What Would Julieanna Do?, gave a TEDx talk, and instructed for the eCornell Plant-Based Nutrition Certification Program. She’s appeared on The Dr. Oz ShowHarry, and The Steve Harvey Show. Julieanna is the Co-Founder and Nutrition Director for Efferos, and she speaks and consults with clients around the globe.

Ray Cronise, BSc, is a scientist-innovator focused on diet and nutrition and co-founder of Efferos, a lifestyle transformation company. He co-authored Healthspan Solution and Plant-Based Nutrition (Idiot’s Guides) 2E with Julieanna Hever and is the mastermind behind Las Vegas magician Penn Jillette’s plant-based diet 100-pound weight loss. A former NASA scientist and Matthew Kenney and Blue Lotus Culinary graduate, he’s collaborating with leading academic researchers at institutions such as Harvard and the NIH to publish work at the intersection of healthspan and plant-based diets. He’s been featured by Wired Magazine, TEDMED 2010, The New York Times, ABC Nightline, The Atlantic, The Daily Beast, Men’s Journal, The Guardian, Presto!: How I made 100 pounds magically disappear, and The 4-Hour Body.


Healthspan Habits

Want to See Julieanna and Ray Live?


Dates - TBD 2021

Plant-based Paris & Alsace, France
France, Germany, and Switzerland

Join us on this beautiful adventure to France for food, culture, history, food, wine, fun, … and more food! Adorable fairy-tale villages, a bustling medieval city, tantalizing vineyards, rich history, a bear & wolf sanctuary, the Black Forest, a taste of Switzerland, an amazing day out in Paris, and rich French-gourmet cuisine throughout, all made with local plant-based ingredients! Explore Paris and fairy-tale Alsace, with side-trips into Germany’s Black Forest and Switzerland’s Basel with us! Allons-y!

Reserve Your Trip!

January 2021 - Reserve NOW!

Plant-Based Thailand 2021 Culinary Retreat
Evason Resort, Hua Hin, Thailand

Known as the “land of smiles,” Thailand lends itself as an extraordinary backdrop to learn, discover, and rejuvenate. The luxury Five-Star Evason Resort will host our program at the Blue Lotus Learning Center for Plant-Based Cuisine. Julieanna Hever, Ray Cronise, and the Blue Lotus Team will guide you though cooking classes in a state-of-the-art cooking classroom. We’ll also explore whole food, plant-based nutrition, eating for healthspan and longevity, debunk common food myths, and much more…Indulge in the unique tropical fare and expand your palate with a range of authentic Thai curries, noodles, and soups along with the wide range of exotic fruits and vegetables.

Registration is open now!

Testimonials & Reviews


Penn Jillette

Las Vegas Entertainer and Magician

“Ray and Julieanna didn’t write a fad diet book. It’s about making a permanent lifestyle transformation. The magic is I still can eat anything I want. The trick is what I want has profoundly changed. They did the trick for me and saved my life, now let them help you.”

Cyan Banister

Angel Investor and Entrepreneur

“Working with Julieanna and Ray has given me a profoundly new understanding of how food impacts health and how what we eat is often dictated by social influences. I’m excited to be a part of their effort to push to this message out to a far bigger audience.”

David Sinclair, PhD, AO

Professor of Genetics, Harvard Medical School

“Ray is a scientific visionary and Julieanna is a master of nutrition. Together they’ve written a fact-based recipe book for longevity that belongs in every kitchen. Buy it.”

Rich Roll

Plant-Powered Ultra Athlete and Author

“Julieanna and Ray are an incredible team. While others have sought to demonstrate the adequacy of an exclusively plant-sourced diet, they teach how it can be superior and mimics longevity research.”

More Books on Nutrition and Cooking

From Julieanna Hever and Raymond Cronise