Online Personal Fitness & Nutrition Training

Helping you become your best self


NO matter what your fitness goals are, we have a way to get you there


with a combination of in-person & online training, we provide training programs to fit your lifestyle

Online & MOBILE Personal Nutrition Training

Track stats & meal plans anytime, anywhere,
making healthy eating simple 

get motivated & see weight loss results

Our women’s weight loss program is custom fit to help with your fitness needs

Online Personal Training that works for your schedule

An best online personal trainer can help you reach your health and fitness goal with all the convenience of training in your own home, gym, or other personal space.

I specialize in personal training & improving fitness as well as body composition and use physical training, nutritional changes, and improvements in thinking to help you reach your goals.


Online Personal Training For You



Strength Coaching

I help busy professionals reach their highest levels of strength for personal and professional performance.
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Fitness Coaching

I use an online fitness coaching program to help both men and women reach their peak fitness levels.
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RUN Coaching

Get an online cardio program to a quicker mile time, faster sprint, or solid cardio workout program and improve your goals

Helping meet your 
fitness goals

Woman resting after weight lifting

Nathan has been great. As an online personal trainers or online coach, I think he strikes a great balance of putting the onus of responsibility on you as the client while also individualizing a diet and training that best suits your lifestyle and goals.

He is extremely responsive to questions and with feedback. I started out as a complete beginner to weightlifting and he has made me feel comfortable and safe along the way by providing regular feedback of my form.

I can’t believe how much progress I’ve been able to make in terms of my strength and physique. I wish I had found him and this service years ago!!

Genevieve M

Strength Program

I’ve been working with Nathan for ~7 weeks, and it has been overwhelmingly positive, & one of the best online personal trainers.

Nathan responds to messages within a few hours. I can honestly say that the workouts are the hardest I’ve ever done. I came from doing all 3 P90X programs, and really liked the cardio/plyo exercises. Nathan let me continue to use those, in combination with regular training.

The app is also really easy to use, great for tracking everything. Additionally, the meal plan was constantly varied, so I never got bored with foods. I often had to make adjustments to make the macro’s work with foods I had available, but nothing too bad. Highly recommend Demetz for the whole package – nutrition and training.

Jason L

Strength & Nutrition Programs

Demetz Personal Training man running
personal trainers: Demetz Personal Training About Nathan Demetz Personal Trainer-certified personal trainer,online trainers

Why use an online personal trainer & nutrition coach?

An online personal trainers and online nutrition coach can provide you all of the services a face-to-face professional would. I pride myself on making the training environment/fitness industry interactive, easy to use, simple to follow, and full of all the information you need to be successful.

Whether you are located in the USA, Canada, India, Australia, the United Kingdom or another country, online personal training and online nutrition coaching can help you reach your goals. Beyond a high quality of service on par with anything you will receive in face-to-face training, the biggest benefits of my online personal training and nutrition coaching are convenience and savings & an easy to use interface.

The online personal trainer cost services are significantly lower than those for face-to-face services, and you can complete the process from anywhere you want—at the gym, at home, at your office, or on the road!

Online Personal Training Program

It is true that I do not have the face-to-face (in person trainers) time with you, but the message system of our app allows you to send us questions 24-7.

It is also true that I am not there to show you exercise form—but as an online trainer I have a video attached to every exercise in the app, allowing you to know exactly what you need to do, plus you send form videos for me to review.

There are many other benefits of my online training program/personal trainer program, nutrition coaching, and the app we use, and this creates a dynamic that ensures your success as long as you put in the work with your own schedule.

Online Personal Training Program

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What Working With a Personal Trainer Is Like

Working with a certified personal trainer or a personal training business is a step in the right direction for better health, a better attitude, and greater overall fitness.

But what does this working relationship look like?

Initial meeting.

We’ll start with an initial meeting, in which we discuss your goals and get to know each other a little bit better. This is your opportunity to get to know your personal trainer and see if they’re a good fit for your health and fitness needs. It’s also my opportunity to get to know you, so I can better understand your goals, your perspectives, and what you want to get out of this working relationship.

What Working With a Personal Trainer Is Like
Goal Setting

Goal setting.

With introductions out of the way, we’ll be ready to start setting more formal goals for your fitness journey.

Are you trying to lose 20 pounds in the next few months? Are you training for a marathon next year?

Are you just trying to eat healthier?

Whatever you’re hoping to achieve, it’s my job as your certified personal trainer and fitness coach to make sure your goals are realistic, achievable, yet challenging enough to motivate you.

Nutritional planning.

The world of nutrition is overwhelming and confusing for most people who aren’t already familiar with it.

Everyone has different nutritional needs & nutritional advice, and it’s important to think about nutrition in many different ways; the calories you eat, the balance of macronutrients that you eat, and the micronutrients you get on a daily basis can all influence your mood, your health, and your athletic performance.

Don’t worry. I’ll take the guesswork out of this experience so you know exactly what you should be eating at all times (nutrition advice).

nutritional advice
Workout Planning

Workout planning.

Any exercise is better than no exercise, but at the same time, some exercises are better than others.

As your personal fitness coach, I’ll work with you directly to design and help you create workouts/execute workouts that are fine-tuned to help you achieve your goals.

Whether you’re trying to become an Olympic record-holding weightlifter or you’re just trying to extend your lifespan, we’ll design the perfect & effective workout schedule for you on your own time.

Coaching and reviews.

I’m also here to help coach you through those exercises and review your workouts (fitness coaches).

If your form is off, we’ll correct it. If you’re feeling unmotivated, I’ll help you get back into the game. If you’re not satisfied with your performance, you’ll find a way to improve it.

I offer unlimited video reviews and unlimited messaging to make sure my clients get what they need.

Coaching and reviews
Ongoing messaging

Ongoing messaging.

Whenever you need support in the health and fitness world, I’m here as your online personal trainer anytime to help you.

Sometimes, all you need is a friendly face right person and someone who believes in you to get motivated to do your workout for the day.

And if you have any questions about your nutritional plan, your workout plan, or your goals, I’m here to provide straightforward clarification so you can understand exactly what we’re out to accomplish.


Setting health and fitness goals is just the first half of the equation. It’s also important to measure your progress and make sure you hit those goals.

Together, we’ll track progress & evaluate your strength training & performance, and if you hit your targets, we’ll celebrate.

If you don’t hit your targets, don’t worry; this is an opportunity to reassess your situation, identify what went wrong, and build a better foundation.



All my workout training plan/fitness plan and nutritional plans are built from the ground up, customized for an individual client.

I don’t use workout templates because I believe online personal training should be truly personal.

With that philosophy in mind, we can make unlimited adjustments to your goals, training program, incorporate nutrition, and nutritional plan as needed.

Setting Your Personal Fitness Goals

What are you hoping to get out of your online personal trainer?
These are some of the most common personal fitness desires I’ve helped people achieve:

Lose weight.

Some people want to lose weight so they can reduce their vulnerability to certain health complications and extend their lifespan.

Some people want to fit back into the clothes they’ve always loved.

And some people just want to look and feel better. Whatever the case, I can help you achieve your weight loss goals.

Lose weight
Build muscle

Build muscle.

Are you trying to be stronger?


More aesthetically muscular?

Whether you’re training to become a professional bodybuilder, or you just want to carry yourself with more confidence, I can help you build more muscle.

Improve athletic performance.

I’m also here to help you improve your athletic performance, if that is your desire.

Running faster, lifting more, and becoming more agile don’t happen naturally; an online personal trainer can make these feats much easier to achieve.

Improve athletic performance
Prepare for a marathon event

Prepare for an event.

You may also use an online personal trainer to help prepare for a specific event, like an upcoming half marathon.

Feel better.

And of course, some people pursue personal fitness just because they want to feel better, inside and out.

Feel Better
The Fitness Coach You Need: Your New Workout Plan

The Fitness Coach You Need: Your New Workout Plan

There are many dimensions of fitness worth considering, and as your fitness coach, I’ll work with you to help you determine which aspects are most important for your goals.

Should you be lifting weight five times a week?

Should you try to run every day?

How often should you be stretching and improving your flexibility?

The answers to these questions are different for everyone, so I’ll help you sort out exactly what you need.

Contact Demetz Online Personal Training

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