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What is the MedGem & BodyGem?


The MedGem  and BodyGem Indirect Calorimeter by Microlife is a handheld, portable indirect calorimeter that measures oxygen consumption (VO2) and determine resting metabolic rate (RMR). The MedGem measurement is easy to administer and provides accurate results in 10 minutes or less.                          Learn More  

MedGem & BodyGem
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Online Store
Mouthpieces & Noseclips

(existing customers)

1 box of 21 - $299

Buy 2 boxes, get the 3rd FREE - $598

Analyzer Software



MedGem analyzer software - $249

BodyGem analyzer software - $199

Microlife Representative

Resting Metabolic Rate




Direct/Cell: 303- 881-8273




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Microlife's mission is to play a dynamic role in reversing the alarming hypertension and obesity trends in the United States.  




Measure RMR?

As seen on

      The Biggest Loser!

Resting metabolic rate (RMR), is the amount of energy expended daily by humans and other animals at rest.  Accurate VO2 and RMR is critical to nutrition assessment for successful weight management, improved medical outcomes, improved diabetic control, and overall health and wellness.


Froedtert Hospital

Children's Mercy Hospital

Northwest Memorial Hospital

St. Cloud Hospital




Family Medical Practices/Groups

Kaiser Permanente

Holtorf Medical Group

Miramont Family Practice

Grand St. Medical Associate



Army & Navy Facilities

Semper Fit Health Promotions

VA Black Hills Healthcare System

Vasquez Marshall Architects - Military Fitness Center

Move! Weight Loss Program



Weight Loss Centers/Gyms

Panhandle Weight Loss Center

Wilfred R. Cameron Wellness Center


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