RMR Metabolic Test
Know your
metabolism.
Discover exactly how many calories your body burns at rest, so your nutrition plan is built on your real metabolism instead of a generic formula.
An RMR test (Resting Metabolic Rate test) measures exactly how many calories your body burns at rest, just to keep essential functions like breathing, circulation, and organ function running. This resting energy expenditure typically makes up around 70% of your total daily calorie burn, making it the single most important number for building an accurate nutrition plan.
Unlike online calorie calculators, an RMR metabolic test in NYC directly measures your actual metabolic rate through a simple 10 to 15 minute breathing test. The result is a precise, personalized daily calorie baseline and macro targets built on real data instead of a guess.
Resting Metabolic Rate (RMR) measures how much energy your body uses just to keep you alive. It is the single most useful number for setting calorie and macro targets.
Relax and breathe normally. That is the whole test.
A generic calculator can be off by hundreds of calories a day. Over a month, that is the difference between progress and a plateau.
When we measure your RMR, your nutrition plan stops being guesswork and starts being math that works for you.
1. Book and pay online. Reserve your RMR test in under a minute.
2. A simple breathing test. Relax and breathe normally into the device for around 10 to 15 minutes. No effort required.
3. Get your number and your plan. We translate your metabolic rate into clear calorie and macro targets you can act on.
Measure your resting metabolic rate, the calories your body burns at rest, which accounts for roughly 70% of your total daily energy expenditure.
Set precise calorie and macro targets based on real metabolic data, not a generic formula or online calorie calculator.
Your RMR score is the foundational number for any goal, whether you're aiming to lose fat, build lean muscle, or maintain your current weight.
If you're eating less and still not losing weight, an RMR test can reveal whether a slowed or metabolically adapted rate, often caused by years of dieting, is the real reason your results have stalled.
Your metabolism is measured directly from your breath using medical-grade equipment, far more accurate than formula-based BMR calculators.
Remeasure your resting metabolic rate as your body composition changes, so your calorie and macro targets stay accurate over time.
“Ten out of ten experience, super knowledgeable staff. I did the DEXA scan, RMR and VO2 max, then they sat me down and went through all of it, making sure I understood what my numbers meant and what to do next.”
“Bryan and the team have been consistently awesome to me and my friends. You get your raw scores, it is explained to you in person and on a handy app, and you leave with real recommendations on how to improve.”
“Ten out of ten experience, super knowledgeable staff. I did the DEXA scan, RMR and VO2 max, then they sat me down and went through all of it, making sure I understood what my numbers meant and what to do next.”
“Bryan and the team have been consistently awesome to me and my friends. You get your raw scores, it is explained to you in person and on a handy app, and you leave with real recommendations on how to improve.”
“Matt was an incredible consultant. The optimization package finally gave me something concrete and efficient to work with. It has done a full 360 for my plans going forward.”
“Training for a race, I came in for the optimization package. Between the DEXA scan, RMR and VO2 testing, I have full clarity on where my health is and what I need to improve.”
“Matt was an incredible consultant. The optimization package finally gave me something concrete and efficient to work with. It has done a full 360 for my plans going forward.”
“Training for a race, I came in for the optimization package. Between the DEXA scan, RMR and VO2 testing, I have full clarity on where my health is and what I need to improve.”
“I am a big numbers girl, so seeing the detailed data from my DEXA scan and VO2 max was super helpful for my running goals. They guided and supported me through the whole process.”
“Super comprehensive results, all the detail on the app and a clear explanation in person. We loved it so much we bought a 6-pack so we can track our health journey.”
“I am a big numbers girl, so seeing the detailed data from my DEXA scan and VO2 max was super helpful for my running goals. They guided and supported me through the whole process.”
“Super comprehensive results, all the detail on the app and a clear explanation in person. We loved it so much we bought a 6-pack so we can track our health journey.”
Your resting metabolic rate is sensitive to what you did in the hours before. These four things matter.
Nothing to eat in the two hours before. Water is fine, and skip caffeine that morning.
Come rested. Training beforehand raises your metabolic rate and the reading will not reflect your true baseline.
You will rest for a few minutes before we start. Build in ten extra minutes so you are not rushing in.
No underwire, zippers, buckles or heavy jewelry. Comfortable, plain clothing is ideal.
Not sure about something on the day? Call us on (516) 496-1717 before you travel.
Prefusion Health uses medical-grade indirect calorimetry equipment to measure your resting metabolic rate directly from your breath. This gives you a precise RMR test result, not a rough estimate from a formula-based calculator.
No waiting days for a lab report or decoding a confusing PDF. Every RMR test at Prefusion Health is reviewed in person on the same visit, so you walk out with clear calorie and macro targets, not just raw numbers.
Your resting metabolic rate results are reviewed with you by your care team, not sent as an automated report. That means your RMR test results come with real guidance on what to eat, how to train, and what to adjust next.
Your metabolism test results aren't just a number, they're the starting point for a personalized plan. Prefusion Health uses your measured RMR to set nutrition targets and clinical recommendations built around your real metabolism.
Manhattan, Bellmore or Stony Brook. No account needed.
No payment needed to book.
Been here before? Use the same email and we'll find your account.
Optional. Your booking stands either way.
What to bring: metal-free athletic clothes and socks. Fast for 2 hours, skip exercise that day.
Need to change it? Call (516) 496-1717.
Reserve your metabolic test on our scheduler. You pay in person on the day of your visit.
Prefer to talk it through? Call (516) 496-1717