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Level 1 Nutrition Certification

The #1 rated Precision Nutrition Certification is everything you need to successfully coach nutrition—in one proven system.

This is your launchpad for what’s next—whether you’re boosting your nutrition coaching skills to help your clients (or yourself), or starting a new career or side-business you’re passionate about.

  • Master the latest in the science of nutrition
  • Feel confident and qualified to coach anyone
  • Save up to 30% when you join the presale list
Spots are limited. Get 24-hour early access.

Precision Nutrition has worked with:

Logo of the San Antonio Spurs, a Precision Nutrition Customer Logo of the Toronto Maple Leafs, a Precision Nutrition Customer Logo of the Seattle Seahawks, a Precision Nutrition Customer Logo of the Houston Rockets, a Precision Nutrition Customer Logo of the Carolina Panthers, a Precision Nutrition Customer


To help you master the science of nutrition and the art of behavior-change coaching—so you can get sustainable results for yourself and your clients.

Elite nutrition coaching methodology = results.

This is the system the pros turn to. Learn from our 15+ years working with everyone from Olympic gold medalists, to NFL, NBA, UFC, and NHL athletes, to recreational exercisers, to Fortune 100 companies like Apple and Nike.

Scientifically proven system.

Our coaching method has been tested with over 100,000 clients and patients. Plus it’s been validated in 3 separate peer-reviewed scientific publications.

Study at your own pace, anywhere.

Work through the certification at your own speed, from anywhere in the world. Plus, you’ll get help when you need it via our private, online support group.

University-level without the classroom.

This program is the culmination of the Masters and PhD courses we’ve taught, the data we’ve collected, and the research we’ve published. It’s the most cutting-edge information available.

Convenient online exams.

Take the exams online at the end of each chapter (20 chapters total). Achieving 75% or more over the course of the program earns you a passing grade and your Pn1 credentials.

Boost your credentials—and your confidence.

In this industry, it’s all about results. Learn the nutrition science and coaching skills you need to help people transform their lives, for good.

Endorsed by leading health and fitness organizations.

We’re the only nutrition certification endorsed by NASM, ACSM, ACE, NBHWC, CrossFit®, CIMPSA, and EREPS.

100% guaranteed.

Try it for 45 days. If it’s not for you, return your materials to get a full refund.

The #1 rated PN Certification gives you the knowledge and skills you need to transform people's health and lives forever.

Imagine how good it would feel to have confidence in your nutrition knowledge… to finally feel qualified to give nutrition advice… and to feel ready to coach anyone to better health and fitness.

The research is clear: To help people get the results they want, the best place to focus is on their nutrition.

But understanding nutrition science is only a small part of what it takes to get people the results they deserve. It only matters if you also know how to help someone change their behavior.

The Precision Nutrition Certification is the only program in the world that teaches you both. And our knowledge isn’t based on theory.

We’re the originators of behavior-change nutrition coaching, and since 2005 we’ve coached over 100,000 of our own clients. (No other nutrition certification company does this.)

We know what works, because we coach real people every single day.

That’s why we’re the #1 recommended nutrition coaching certification in the world, with over 150,000 health and fitness professionals choosing to get certified by us.

Now we’re ready to teach you the nutrition science you need to feel competent—and the behavior-change coaching skills you need to deliver sustainable results for anyone.

In the PN Certification, you’ll learn a proven and practical system that shows you exactly what to do at every stage of the nutrition coaching process—from the very first time you meet with a client, until they reach all their goals.

No matter where you’re at in your career, you can become Precision Nutrition Certified… and learn how to coach nutrition in the most effective way possible.

And you can use your new coaching skills to earn a great living doing what you love, either full-time or as a flexible side business.

(According to a recent study by the Personal Trainer Development Center of over 1,200 coaches, those who have a Precision Nutrition Certification earn more money—11% more than those with other certifications.)

Read detailed reviews of the Precision Nutrition Level 1 Certification and see for yourself the kind of results our students get.

Male nutrition coach smiling with hands on hips.

A deep understanding of nutrition, the authority to coach it, and the ability to turn what you know into results.

The PN Level 1 Certification will teach you all that, including the methodology we’ve tested, refined, and proven with over 100,000 coaching clients.

The experts that other
experts come to for help.

Developed and written by John Berardi, PhD, CSCS, Krista Scott-Dixon, PhD, Brian St. Pierre, MS, RD, Helen Kollias, PhD, CSCS, and Camille DePutter, the Level 1 Certification is the synthesis of everything we’ve learned over 15 years of coaching and research in nutrition.

John Berardi PhD, CSCS, Co-Founder

Dr. Berardi (a.k.a. “JB”) is a co-founder of Precision Nutrition, which has become the world’s largest online nutrition coaching and certification company. He’s an advisor to Apple, Equinox, Nike, and Titleist, and was recently selected as one of the 20 smartest coaches in the world.

I’ve devoted my entire career to making health and fitness something that’s achievable and attainable for every type of person, from every walk of life.

Precision Nutrition advises organizations around the world, coaches elite athletes & sports teams, and has been featured in leading publications. There’s a reason over 2 million people come to our website for advice every single month.

Titlest logo, a Precision Nutrition Customer New York Times logo, a publication Precision Nutrition has been featured in Logo of the Texas Longhorns, a Precision Nutrition Customer Logo of the Cleveland Browns, a Precision Nutriton Customer Logo of the Brooklyn Nets, a Precision Nutrition Customer Time Magazine logo, a publication Precision Nutrition has been featured in Logo of Livestrong, a Precision Nutrition Customer
Logo of Nike, a Precision Nutrition Customer

“John Berardi is one of the top sports nutrition experts in the world. He concentrates on simple solutions that actually work. That's why he's a key part of our high-performance team.”

Logo of Team Canada, a Precision Nutrition Customer

“I was really looking to dial in and optimize my nutrition for performance and recovery. Precision Nutrition was a terrific resource to help me reach my goals.”

Logo of Altis, a Precision Nutrition Customer

“I have known JB for almost two decades. He has been – and continues to be – my ‘go-to guy’ for all things nutrition and change psychology; he has what all great teachers have: an ability to take complicated constructs, and communicate them in a way that makes sense to simple people like me.”

Altis World

“Thanks, John, for making me bigger and stronger. You are the best thing that I've added to my training regimen."


Where else can you learn a
proven way to coach nutrition?

If you’re going to do nutrition with your clients, you want to do it right. But where should you start?

Should you go back to school?

It depends on your situation. If you have the time and money then it may be an option for you. Then again, most college nutrition classes are heavily focused on clinical dietetics (like what to feed hospital patients and how to prevent nutrition deficiencies). Important education for important work, but there’s almost zero emphasis on real-world coaching, and how to actually get your clients to follow your advice.

Should you learn from the internet and social media?

The internet is great, but we don’t recommend basing your entire knowledge base on the stuff you learn there. That’s because the internet is full of strong opinions backed by little-to-no data. It’s more likely you’ll leave feeling even more confused, rather than confident. (Plus, most people on the internet have only coached a couple of people—if any. We’ve coached over 100,000 clients.)

Nothing addresses the two biggest problems most professionals face every day:

  • How to use both nutrition science and behavior-change coaching skills to get the best possible results for their clients
  • How to get the education they need—on their terms and within their schedule—without having to go back to school.

Except the Precision Nutrition Level 1 Certification.

Nurtion coaches smiling, fitness clients being active
Nurtion coaches smiling, fitness clients being active

Why learn with Precision Nutrition?

Here are just a few reasons why we’re the obvious choice…

We’re the only nutrition certification company in the world that coaches its own clients every day (over 100,000 clients and counting). That means everything you’ll learn has been proven in the real world, with real people.

The #1 recommended nutrition coaching certification. Close to 1,000 health and fitness pros recently rated nearly a dozen well-known nutrition certification programs. The PN Certification is top-ranked across the board:

  • #1 most recommended nutrition certification
  • 94% of customers rate our program better than anything else out there
  • Rated #1 by customers for satisfaction, reputation, quality, and effectiveness

Science-backed and peer-reviewed. Our coaching method was recently validated in 3 peer-reviewed studies. This means everything you’ll learn is backed by science.

Bottom line: If you want to learn how to coach nutrition from the best in the field, you’ve come to the right place.

Life-changing results with Precision Nutrition.

Twice a year, we work with a select group of clients, coaching them using our proven nutrition
system for 12 months. This allows us to continually test and validate our methodology.

After helping over 100,000 clients get into their best shape ever, we’re confident
that you’ll be able to see the same type of results with everyone who comes to you for help.

Nutrition coaching clients before and after results photos
Click on any client above to zoom in and see their body composition date and before/after photos.
These are just a few of the thousands of clients whose lives have been changed using PN Coaching.

We took the most cutting-edge research available anywhere, and put everything in the latest 4th Edition.

Get the latest science, the latest practice—the very best nutrition education anywhere.

Since we first launched the Precision Nutrition Certification, we’ve been recognized as the world’s most definitive source on the science of nutrition and the art of behavior-change coaching.

Indeed, over 2 million people passionate about fitness and nutrition visited our website last month. That’s enough to fill the Dallas Cowboy’s stadium 20 times over. Yet we’re never satisfied with yesterday’s success.

Nutrition science is dynamic, new discoveries are made almost daily. And that’s just on the research side. As we continue to coach clients (over 100,000 of them to date), we’re discovering new methods of helping them achieve real, lasting behavior change. That’s why we’re constantly updating the course curriculum.

PN L1 nutrition certification books and curriculum 4th Edition
PN L1 nutrition certification books and curriculum 4th Edition

Now in its Fourth Edition, the
Precision Nutrition Level 1
Certification has been
completely re-envisioned from
the ground up.

PN L1 nutrition certification books and curriculum

3 textbooks—in a beautiful box set—with the latest research in nutrition and behavior-change psychology.

The Level 1 Certification comes in three unit textbooks, beautifully packaged in a box set for easy reference. Unit 1 teaches you the unique and proven Precision Nutrition approach to coaching. Unit 2 teaches you the science of nutrition in an easy-to-understand format. And Unit 3 gives you a step-by-step process to apply everything you’ve learned, from coaching to business strategies, so you can get immediate results. Plus, it’s easy to carry from your house, to the car, to the gym—so you can study anywhere!


Thumbnail image of chapter 1 content
Thumbnail image of chapter 4 content
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Thumbnail image of chapter 17 content

Animated videos, one for each textbook chapter, to boost your understanding and your retention.

Each video seminar corresponds with each textbook chapter. They’ll help you better learn the material… and better retain what you learned. Watch (and re-watch) whenever you like.

Check out 4 sample lectures by clicking any of the videos.

Example Precision Nutrition Level 1 assessment forms

Over 40 assessment forms and questionnaires to help you better understand your clients’ needs, and unlock their potential.

Once you register, you’ll get immediate access to our premium nutrition coaching tools and forms, so you can get better results with your clients from Day 1.


Illustration of a nutriton calculator surrourded by healthy foods

Precision Nutrition Calculator, Professional Edition

Built specifically for our students, this is the most comprehensive calorie, portion, and macro calculator available anywhere. Simply enter your client’s details, goals, and eating preferences—and this tool will produce a beautiful, personalized eating guide within minutes. This pro version is full of advanced features and customization options—giving you the ability to coach at the highest level.

With study tips, live webinars, and other resources, being part of this community will deepen your learning, introduce you to new people, and help you level up your career.

Online community of like-minded coaches and top experts.

You’ll learn alongside an extremely supportive group of health enthusiasts from around the world—including top strength coaches and personal trainers, world-class yoga instructors, doctors from a variety of disciplines, and more.

Connect daily with experienced coaches, fellow students, and even textbook authors. Ask questions, join optional study groups, troubleshoot specific coaching scenarios, and get advice whenever you need it.

How the certification program works.

Once you register, you can start right away with our online study strategy guide–and you’ll get your certification materials shipped to you, free of charge, anywhere in the world.

Example of Precision Nutriton Level 1 questionnaire shown on iPad

Get access to more than 40 coaching tools we use with our own clients.

Once you receive your course textbooks and materials, you’ll find all the forms, questionnaires, and assessment tools we use at PN. They’re yours to use with your clients.

Example of Precision Nutrition Level 1 online lessons shown on desktop, mobile, and iPad

Our mobile and desktop coaching platform works in conjunction with your textbooks.

Here’s what your home page will look like, complete with lessons, videos, and exams for each chapter. Notice that you can access everything from whichever device you prefer.

Example of Precision Nutrition Level 1 chapters on mobile phone

Stay accountable and on-track with our simple 3-step process for each chapter:

Step 1: Watch the chapter video, read the chapter text, and answer the study guide questions.

Step 2: Practice and play with what you’ve learned with real-world case studies, taken from our original client data.

Step 3: Take the short end-of-chapter exam at your convenience.

Become PN1 certified.

By the end of the course, you’ll have written 20 short, 10-question exams, for a total of 200 questions. Get at least 150 of the questions correct (75%) to earn your PN1 credentials. We’ll send your official certificate immediately after you pass.

Most of our students pass on the first try. But just in case you don’t, you’ll still have 5 more tries at the exam. And of course, we’re here to help you along the way if you need it.

Screenshot of Precision Nutriton Certified Coach directory on a laptop

Get your business listed on the PN website.

Once you’re certified, you can provide your business and contact information to be listed on our site. That way local people interested in PN-approved help can easily find you.

The Precision Nutrition Level 1 Certification qualifies for continuing education credits with the following organizations worldwide, including the following:

ACE Fitness logo, a nutrition continuing education partner ACSM logo, a nutrition continuing education partner NASM logo, a nutrition continuing education partner Ptaglobal logo, a nutrition continuing education partner Ptaglobal logo, a nutrition continuing education partner NBHWC logo, a nutrition continuing education partner CIMSPA logo, a nutrition continuing education partner ISSA logo, a nutrition continuing education partner

Is getting a nutrition certification worth it?

The Precision Nutrition Level 1 Certification is trusted
by elite health and fitness professionals worldwide.

Thumbnail image of Eric Cressey Precision Nutrition grad testimonial

The Level 1 Certification allows you to immediately affect positive changes in the lives of your clients. One of the things I absolutely love is the focus on the big things first — the behavioral modifications, and the quick fixes that can yield dramatically improved results.

Eric Cressey, MA, CSCS
Thumbnail image of Jonathan Goodman Precision Nutrition grad testimonial

What really makes a great coach, and what I think works so well in the PN Level 1 program — it’s not about telling someone to do something. It’s about knowing what questions to ask, and then leading the person in the right direction.

Jonathan Goodman, founder of the Personal Trainer Development Center
Thumbnail image of Marie-Josee Perrier Precision Nutrition grad testimonial

The Level 1 program gives you the skills and tools that you need to actually go out and do it. So it’s not just academic information. It gives you everything you need to be a successful coach.

Marie-Josee Perrier, PhD
Thumbnail image of Adam Lloyd Precision Nutrition grad testimonial

As I was going through the course I realized it was perfect; it’s exactly what I wanted and needed to learn. The information it taught me vs. the 4th year nutrition course I took as a Kinesiology was like comparing apples to oranges. The nutrition course was good. But the Precision Nutrition Certification was that much better.

Adam Lloyd, CSCS

The PN Certification is everything we’ve learned—brought together, and shared with you.

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Every year we recognize clients who do the best in our coaching program. Here are a few of them, along with their results, and what you can expect by applying the PN Method.

Precision Nutrition is the only nutrition certification company in the world that successfully coaches real clients every single day.

What does that mean? The Precision Nutrition Level 1 Certification is NOT full of abstract theory that doesn’t work in the real world.

Instead, it’s deep knowledge that’s client-tested, scientifically proven, and constantly updated based on the data we’ve collected working with over 100,000 clients.

Clients like these…

Our Guarantee

Illustration of 45 day money back guarantee badge for PN Level 1 nutrition certification

Lots of companies guarantee their products. We guarantee our services, too.

Our students make a commitment to learn from us—and we make a commitment to help them become better coaches. Then our students decide for themselves: Was it worth it? If yes, they earn their Pn1 credentials and head out to change people’s lives. If no, we give them a full refund.

That’s our promise. Try the PN Level 1 Certification for 45 days. If you’re not happy with what you learn, return your textbooks and we’ll give you every penny back. We’re confident in what we do and we stand by our work.


Save up to 30% on the #1 rated Precision Nutrition Certification when you add your name to the free presale list.

The general public price of the Precision Nutrition Level 1 Certification is $119 USD per month for 12 months.

But when you join the free presale list today, you’ll get the opportunity to get it for only $99 USD per month or a one time payment of $999 USD–up to 30% savings.

That means you can boost your nutrition coaching skills, advance your career, and change lives, all for around $3 a day… the price of a takeout coffee, and a tiny fraction of the cost of going back to school.

Important note: Spots in the PN Certification are limited and have historically sold out in hours, so joining the presale list gives you the best chance at getting in.

Which is better—taking the PN Certification or going back to school?

We won’t pretend to have the perfect advice for every situation, but we do have some thoughts on this topic…

If you decided to go back to school for a nutrition degree or to become a registered dietitian, you’d likely spend anywhere from $10,000 – $20,000 USD per year. If you did a four-year degree, you’d be looking at spending upward of $40,000 – $100,000 USD.

The only problem? Most university courses lack real-world coaching opportunities. And most professors aren’t experienced coaches. That’s why many students find that they’re stuck once they graduate.

It’s also why, in the Precision Nutrition Level 1 Certification, we’ll share a proven coaching system that’s guaranteed to get results for anyone who comes to you for help—at a tiny fraction of the cost of attending a university.

Here’s a quick comparison…

$40,000 – $100,000 USD
$999 USD
PN Level 1 Certification
4 years of undergrad, plus
4 years of part-time grad school.
Study at your own pace—program is entirely self-paced, so there’s no deadline. You can take as much time or as little time as you like.
Additional costs for textbooks, housing, student fees, etc. All course materials included, free shipping. Get all your certification materials shipped directly to your door, at no cost, no matter where you live.
Learning in an academic format that might not work for you. Learning as easy as reading your textbook and watching a video, with short end-of-chapter quizzes to test your knowledge.
Often has to be done on site. Delivered entirely online—study whenever you want, wherever you are. Take the online exams when you’re ready.
Might not be able to apply most of the material to your coaching practice. All material can be immediately applied to your coaching.

In the end, only you can determine the best education path for you. After coaching over 100,000 clients, we know what works. We’ve created a bulletproof system. And now it’s ready for you to use with your clients.

The Precision Nutrition Certification is like getting a graduate-level education in nutrition science and behavior-change coaching. Inside the program, we’ll give you everything you need to…

  • Feel confident that you really understand nutrition
  • Feel qualified to give the right nutrition advice, at the right time
  • Feel ready to coach anyone to better health and fitness

Your next step? Join the free presale list today, and we’ll give you all the info you need to determine if this is the right program for you.

Just so you know...

The next Precision Nutrition Level 1 Certification group opens on September 22nd, 2021.

On September 22nd, registration for the Level 1 program opens to a small group of health and fitness professionals—along with those thinking of joining the field.

(Spots are limited, and have historically sold out within hours after opening.)

When you join the free presale list today, at no obligation, we’ll send you more information about the program and give you the chance to enroll on Tuesday, September 21st—a full 24 hours before we open to the general public.

Plus, you’ll save up to 30% off the general public price.

A deeper understanding of nutrition, the authority to coach it, the ability to turn what you know into results. Join the presale list today.


Spots are limited. Get 24-hour early access.

Frequently Asked Questions

Final note

More people than ever are looking for someone to help them get healthy and fit—and stay that way for good. And the best place to focus is on their nutrition.

But successful coaches realize that understanding nutrition science isn’t enough. You must also be able to effectively help others change their eating and lifestyle behaviors.

That’s what we do every day (no other nutrition certification company does this). And we’re ready to teach you the same science-based coaching method we’ve used with major health organizations, professional sports teams, Olympic athletes, and over 100,000 clients worldwide.

Of course, if now isn’t your time, we understand. We hope this helped you understand who we are and what we do. We’ll be here if and when you need us.

But if now is the time for you to build your own nutrition knowledge—or learn how to help others with their health and fitness—then the Level 1 Certification is everything you need to get great results and build a remarkable career or fulfilling side gig.

We’re excited to teach you everything we know about the science of nutrition and the art of behavior-change coaching.

But the next step is yours.

Hope to see you in the program,

– The PN Team

A deeper understanding of nutrition, the authority to coach it, the ability to turn what you know into results. Join the presale list today.


Spots are limited. Get 24-hour early access.

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