“Explore a world of thoughts and ideas where the smallest things we see or don't see — believe or don't believe — do or don't do — can make the biggest difference in the quality and direction of our lives.”
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Nine science-backed books, written for real people — practical, warm, and built to last a lifetime.
Ideas, stories, and science — short videos that change how you think about health and life.
Warm, credentialed, and genuinely funny. Every audience leaves moved and better equipped.
One small idea. One thoughtful pause. One reminder that the smallest things make the biggest difference — from Dr. Ray to your inbox.
Endorsed by the Best Minds in Health & Publishing
This book is truly for anyone. “Smart Weight Loss” is filled with terrific insights and simple tools to help inspire and teach you how to make positive changes that support and promote a fit and healthy life.
A compelling analysis of myths and realities regarding alcohol. Good science. Good teaching. Read and learn. It will help you understand yourself, your family, and your friends.
Discover the miracles that can come out of life's simplicities. Dr. Haring will inspire you to be more, give more, take more chances, and ultimately be more alive.
The Smallest Things Make the Biggest Difference® is a little gem. Dr. Haring collects a gallery of profound thoughts and insights into the human character, creating a collage of very compelling stories and quotes. This book is worth your time to sit and read.
“Smart Weight Loss” is a fun read that will help you live a more active and healthier life.
A wonderful collection of positive and refreshing observations of life. An uplifting read for anyone searching for an oasis amidst life's many distractions.
About Dr. Ray
Dr. Ray Haring, Ph.D. is a nutrition scientist, award-winning educator, author, and speaker whose life's work has been helping people understand the powerful connection between health, behavior, attitude, and the small daily choices that shape who we become.
With a Ph.D. in Nutrition Science with an emphasis in Physiological Chemistry, Dept. of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, Dr. Ray brings rare scientific depth to subjects people care about deeply: energy, weight, alcohol, metabolism, motivation, personal responsibility, and the art of living well.
But his real gift is not merely knowing the science. It is making complex ideas clear, memorable, practical, and deeply human.
Through nine books in The Smallest Things Make the Biggest Difference® series, hundreds of hours of televised teaching, and decades of presentations for corporations, government agencies, healthcare organizations, universities, and professional groups, Dr. Ray has helped audiences see that lasting change rarely begins with grand gestures.
More often, it begins with one thought, one habit, one choice, one story — one smallest thing.
Dr. Ray speaks to audiences who want more than information. They want clarity. They want perspective. They want to laugh, think, reflect, and leave with ideas they can use the same day.
Science
Ph.D. in Nutrition Science with an emphasis in Physiological Chemistry, Dept. of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis.
Storyteller
Through nine books in The Smallest Things Make the Biggest Difference® series, Dr. Ray uses memorable stories to reveal how small choices, habits, attitudes, and insights can profoundly influence health, behavior, communication, productivity, and overall well-being.
Stage
A trusted and sought after speaker for corporations, universities, government agencies, healthcare organizations, and professional groups seeking clarity, perspective, humor, and practical wisdom.
Teaching
Known for making complex ideas understandable, personally meaningful, and immediately useful — whether in the classroom, on television, in books, or before a live audience.
The Library
Every book in the Smallest Things Make the Biggest Difference® series is grounded in real science, told through human stories, and written for anyone who wants to live better.
Audio Edition
Dr. Ray's flagship book was professionally recorded and produced in three beautiful volumes — narrated entirely in Dr. Ray's own voice, with original background music throughout. All three volumes are available to stream or purchase on both Apple Music and Amazon Music.
Dr. Ray's YouTube channel is
coming very soon.
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YouTube
25 years of research and teaching — four series, hundreds of ideas, one mission: make the science of a better life accessible to everyone.
Speaking
Warm. Credentialed. Genuinely funny. Dr. Ray has spoken for the FBI, the FDA, the Department of Defense, 20th Century Fox, major hospitals, universities, businesses, and corporations across the country. His presentations bring science, story, humor, and practical wisdom to subjects audiences care about deeply — communication, team building, inspiration, motivation, productivity, health, wellness, nutrition, personal responsibility, and the small choices that we make or don't make, that have a huge impact on our lives. Every presentation is grounded in science, delivered with warmth, and remembered years later.
A powerful keynote on how the smallest choices, habits, words, attitudes, and actions shape performance, productivity, leadership, health and wellness, relationships, and the direction and quality of our lives. With warmth, humor, and practical wisdom, Dr. Ray helps audiences discover how small things done consistently can transform morale, personal goals, workplace culture, and the way people respond to challenge — turning adversity into a source of strength, perspective, and renewed possibility.
We see with our eyes, but we navigate life with our minds. In this thought-provoking and energizing presentation, Dr. Ray shows audiences how simple ideas can unlock clearer thinking, stronger teamwork, better goals, greater creativity, and a more productive attitude toward work and life. Ideal for organizations, teams, educators, leaders, and groups seeking fresh perspective and renewed momentum.
A clear, candid, and scientifically grounded presentation for audiences tired of fads, hype, miracle claims, and confusing health advice. Drawing on his Ph.D. training in nutrition science and physiological chemistry, Dr. Ray separates fact from fiction and gives audiences practical, evidence-based insights they can use to make better decisions about health, nutrition, lifestyle, and long-term wellness.
Based on Dr. Ray's American College of Sports Medicine-endorsed book Smart Weight Loss, this presentation cuts through diet gimmicks and explains weight, metabolism, habits, food choices, and lasting change in a way audiences can finally understand. With memorable lessons such as “change your mind, change your body,” “break cycles, not records,” and “toss the cookies, not the salads,” Dr. Ray gives groups a practical, science-based path toward healthier choices without shame, hype, or quick-fix promises.
A Partial Look at Who Dr. Ray Has Presented For
From federal agencies to major corporations, hospitals to universities — Dr. Ray has been trusted to deliver for decades.
View Partial Client List & Audience Testimonials →Booking
Whether you represent a corporation, a speaker bureau, or a professional association — we'd love to hear from you.
Contact Dr. Ray
Not every message is a speaking inquiry. If you have a question about one of Dr. Ray's books, something you heard in a video, or a nutrition topic you've always wanted a straight answer on — this is the place.
Readers, students, journalists, and curious minds are always welcome. Dr. Ray reads his messages. He'll do his best to respond.
A brief weekly reflection from Ray Haring, Ph.D.
One small idea. One thoughtful pause. One reminder that the smallest things often make the biggest difference.
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The Professor
Dr. Ray developed and taught one of the most demanding courses in his department — a graduate-level deep dive into the biochemistry and physiology of nutrition and metabolism. Students called it the hardest class they ever loved. Explore his academic legacy and download the original course syllabus.
The Professor's Page →