What is the best diet? You may be surprised.


"What's the best diet?" It is one of the most common health and fitness issues – and everyone has the opinion. Here, Dr. John Berardi offers the amazing answer as well as 4 ways to evaluate if you've found the best diet for you (or your customers).

About the PN 1 Certification Program

Precision Nutrition Precision Certification 1 is the most respected educational nutrition program in the world. It gives you the knowledge, systems and tools you need Really Understand how nutrition affects the health and fitness of a person.

Whether you are already in the middle of your career or just starting out, it's the springboard for a deeper understanding of nutrition, the power to train and the ability to convert what you know into results. To learn more, check out this video:

Learn more about Level 1 certification.

Level 1 Certification Postgraduate Stories

Precision Nutrition trusts health, wellness and wellness professionals worldwide. Let's see what they have to say:

"Level 1 certification is a very practical experience that allows you to directly influence the positive changes in your clients' lives. One of the things I absolutely love is focusing on the first things – behavioral changes and, to a certain extent, fast corrections that can yield dramatically improved results. "
– Eric Cressey, MA, CSCS

"The Level 1 program gives you the skills and tools you need to really go out and do it. So it's not just academic information and it gives you everything you need to be a successful coach.
– Maria-Jose Perrier, PhD

"What really makes a great coach and what I think is working so well in the PN Level 1 program – is not to say something, to know what questions to ask and then to lead the person in the right direction ".
– John Goodman, CSCS

"I think the most cool thing about the program is to promote behavioral change If I can teach my patients how to change, I can make a world of difference without having to take my tampon. want to teach other people how to live healthier lifestyles, I say to them that Accuracy Precision 1 is the way to go. "
– Spencer Nadolsky, DO, Bariatric Medicine

"As I was passing the lesson I realized it was perfect, it's just what I wanted and had to learn … The information I taught against the 4th year of nutrition I got as a student of Kinesiology … was like comparing apples to oranges. Diet was good, but Precision diet certification was much better. "
– Adam Lloyd, CSCS