The BodyGem is a handheld device that accurately measures resting metabolic rate (RMR). RMR is the number of calories your body burns a day with no activity (up to 75% of your total daily calories). Your number is specific to you!

The following is recommended prior to taking the test:

  • No exercise for four hours prior to the test
  • No food for four hours prior to the test
  • No caffeine/stimulants for four hours prior to test
  • No nicotine for one hour prior to test

Members will sit for 10 to 15 minutes prior to the test. Once the test starts, members will relax and breathe into the device for six to 10 minutes. All of your oxygen will go into the device to find out your exact RMR.

To learn more about BodyGem, download the PDF of our BodyGem Frequently Asked Questions. For more information and pricing, or to schedule a session, contact Jessica Ervin at (847) 535-8614 or


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