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Achieve your undiscovered potential !

Whether you want to lose weight, optimize your athletic performance, or peak perfectly on competition day, our individual programs will help you be accountable to your best self and achieve your undiscovered potential!

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Our Programs

Weight Loss

Want to feel confident knowing you've developed the habits necessary to lose and keep weight off for life?

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Want to feel confident in achieving the mutual health goals outlined by your Medical Professional?

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Contest Prep

Want to feel confident knowing you will peak perfectly for your next physique contest?

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Want to feel confident that your nutrition is optimized for optimal sport specific performance?

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Who We Are

Tyler Sermon

Portland, OR

Tyler is heavily involved in the medical industry, the Cross Fit community, and has been a personal trainer for a large commercial gym. His love for fitness and athletics started at a very young age, while his experiences with being overweight as a child, then again as an adult, give him the ability to relate to the struggles of obesity and the efforts involved in changing habits toward proper nutrition and fitness.

Gerry Bernabe

Bend, OR

Gerry has worked in the health and fitness industry since 2000 and has served in a variety of roles ranging from Personal Trainer, Contest Prep Specialist, Clinical Obesity Management consultant, and Corporate Health and Wellness advisor. He's a Natural Bodybuilding Professional and has been featured in Popular fitness magazines such as Men’s Health and Muscular Development.

Learn more about Tyler & Gerry


David R

I've been working with Diet Doc and Tyler Sermon for nearly 3 months and have lost 20 pounds. The coaching and motivation that I receive has been key to me losing weight and on my way to being in great shape. When joining I knew I'd be part...
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Scott J

I can't recommend Gerry Bernabe and Tyler Sermon highly enough.

The Diet Doc Bend/PDX were supportive, professional and spot on with their diet and training recommendations throughout my entire experience. They took the time to learn my d...
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Jordan M

Nutrition has always been my biggest struggle throughout my fitness career. My hurdle has always been what avenue to venture down with nutrition whether it is paleo inspired or keto driven. As a competitive Crossfit athlete, my nutrition ha...
Jordan M's full testimonial

Sean L

The Diet Doc has been a great resource for me to dial in my nutrition and help me stay on track even with my busy school schedule. This has allowed me to train and see a faster improvement in my athletic performance and has made me feel con...
Sean L's full testimonial

Kate D

A year ago I decided to do something about my weight after being unhappy with the way I look and felt. My 2 kids took a toll on my body and I thought all hope was lost. But thanks to Gerry Bernabe he has taught me so much about nutrition an...
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Joel P

I have always enjoyed physical activity and consider myself to be an active individual; however, in December 2014, I decided to elevate my training by joining on with Coach Gerry. With his guidance and encouragement, I have attained fitnes...
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Learn how to lose weight and keep it off

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