Metabolism Insights, Made Clear

Resting Metabolic Rate

Discover how your body burns calories at rest and create nutrition strategies tailored to your metabolism.A quick, non-invasive test to optimize your diet and fitness plan.

Why Choose RMR Testing?

Pinpoint Precision

Get accurate insights into how many calories your body burns at rest using medical-grade indirect calorimetry.

Personalized Results

Understand your unique metabolism to create a tailored nutrition, training, or weight management plan that actually works for you.

Track Progress

Monitor metabolic changes over time to see how your body responds to dietary shifts, workouts, or recovery phases.

Non-Invasive & Simple

The test is quick, easy, and completely non-invasive — just breathe naturally while the system measures your metabolism.

What is RMR Testing?

Resting Metabolic Rate (RMR) testing measures the number of calories your body burns while at complete rest — the energy required to maintain vital functions like breathing, circulation, and cell repair. It’s one of the most accurate ways to understand your metabolism and energy needs.

By using indirect calorimetry, RMR testing analyzes oxygen consumption and carbon dioxide production to determine your body’s energy expenditure. Whether your goal is fat loss, muscle gain, or improved performance, knowing your RMR allows you to customize your nutrition and training with precision.

Benefits of RMR Testing

Accurate Calorie Measurement:Unlike online calculators or wearable estimates, RMR testing measures your real calorie burn at rest through precise oxygen and carbon dioxide analysis.

Personalized Nutrition Plans:  With your RMR results, you can determine exact calorie needs to lose fat, maintain weight, or gain muscle no more guesswork.

Track Metabolic Changes: Your metabolism changes with age, diet, and lifestyle. Regular testing helps you understand how your body responds and adapt accordingly.

Detect Slow or Fast Metabolism: Find out if your metabolism is slower or faster than average and get insights to improve your energy balance and performance.

Quick & Non-Invasive:  The test takes about 15–20 minutes and only requires normal breathing into a small device — no blood tests or strenuous activity involved.

Supports Sustainable Results : By knowing your true metabolic rate, you can build a nutrition plan that’s sustainable, effective, and tailored to your lifestyle..

Dexafit Packages

Turn objective testing into clear action.

Choose a focused package that matches your goals, then book in minutes.

Pick the path that fits your goal; each package leverages your DEXA/RMR/VO2 data and adds targeted guidance

Optimization Package

The Optimization Package gives you a complete understanding of your body’s composition, metabolism, and performance potential. With these insights, you can align your nutrition, exercise, and recovery to your unique physiology.

Includes:

DEXA

RMR

VO2 Max

Nutrition Precision

Not sure how to translate your testing data into an actionable plan? Take your results one step further with our Baseline DEXA scan and Resting Metabolic Rate test, followed by a 50-minute consultation with a health coach.

Includes:

DEXA

RMR

50-min with a health coach

Peak Performance

Experience Peak Performance — a precision-based program pairing science and strategy.  With DEXA and VO2 Max testing at baseline and retest, this package delivers a complete performance and longevity profile built around your body’s data.

Includes:

2× DEXA (baseline + retest)

2× VO2 (baseline + retest 90–120 days later)

Test and re-test | DEXA + RMR Packs

These packs apply to  DEXA and RMR only, and you can mix any combination across 2, 3, 6, or 9 visits. For added flexibility, the 6 and 9 Packs are shareable  with one additional person.

2 Pack

Perfect for a clear start and first checkpoint.

3 Pack

Baseline, mid-point, retest for  momentum.

6 Pack

Multiple cadence for consistent change.

9 Pack

Best value, keep motivation high all year.

Go Beyond the Data Transform Your Health from the Inside Out.

You’ve measured where you stand with DexaFit. Now take the next step with Prefusion Health, our partner in total wellness and optimization. From advanced labs and hormone balance to nutrition, IV therapy, and peptide treatments, Prefusion creates personalized programs designed to help you feel and perform your best every day.

  • What is an RMR test?

    RMR stands for Resting Metabolic Rate. It measures how many calories your body burns at rest — the energy needed for essential functions like breathing and circulation.

  • How does an RMR test work?

    You’ll sit or lie comfortably while breathing into a small mouthpiece connected to a device that analyzes your oxygen consumption and carbon dioxide production. The test typically lasts about 15–20 minutes.

  • Is RMR testing safe?

    Yes. It’s completely safe, painless, and non-invasive. You simply relax and breathe normally while the device collects data — no physical exertion or discomfort involved.

  • How long does an RMR test take?

    The entire appointment takes around 20 minutes, including preparation and testing. The actual test lasts about 15 minutes.

  • How should I prepare for my test?

    For the most accurate results, avoid caffeine, food, and exercise for at least 4 hours before your test. Rest well and arrive in a relaxed state.

  • How often should I get tested?

    We recommend testing every 3–6 months, or whenever you make major changes to your diet or training plan, to see how your metabolism adapts.

  • What can I learn from my results?

    Your results show your daily calorie burn at rest and your metabolic efficiency (Fat vs Carb utilization). This data helps you set accurate calorie goals for weight management, performance, or recovery.

  • Who should get an RMR test?

    Anyone who wants a deeper understanding of their metabolism — from athletes fine-tuning nutrition to individuals starting a weight-loss or health journey.