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(858) 534-3300

Body Composition Analysis

How it Works

The Tanita Body Composition Analyzer, via bioelectrical impedance, calculates a person's percentage of body fat. High body fat percentage is directly correlated with increased risk of obesity, cardiovascular disease, diabetes, and certain types of cancer.

This service is NOT recommended for individuals who have a pacemaker or who may be pregnant.

weights and pearTo improve the accuracy of the test, proper protocol must be followed. Please schedule a time when you can adhere to the following recommendations:

  • No alcohol 48 hours before the test.
  • Avoid intense exercise 12 hours before the test.
  • Avoid eating or drinking (especially caffeine) 4 hours before the test.
  • Empty your bladder 30 minutes before the test.
  • Avoid all diuretic medications for 7 days before the test (only if possible).
  • Test at least 3 hours after waking.
  • Pre-menstrual women may retain fluid, which can affect the outcome of the test.

The test is conducted by a peer educator and requires you to stand barefoot (in light clothing) on a scale. This a 15-20 minute appointment. If you make an appointment at Student Health, you will receive a computer generated analysis with the following information: body weight, body mass index (BMI), percentage body fat, calculated basal metabolic rate (BMR), fat mass, fat-free mass, and total body water. If your body fat is measured at the Zone, you will receive the following information:  blood pressure reading, body weight, body fat percentage, and total body water.  You can make an appointment with our Registered Dietitian for any follow-up concerns you may have.

Read more about BMI here​.

Schedule an Appointment​

Appointments for Body Composition Analysis at Student Health Services are available Weeks 2 - 10 of each quarter on the following days and times.

  • Tuesdays at 11:00AM or 11:30AM
  • Wednesdays at 10:00AM or 10:30AM
  • Thursdays at 2:00PM or 2:30PM
  • Fridays at 9:00AM or 9:30AM

Email the following information to studenthealth@ucsd.edu to make an appointment. Please use the subject line "Secure: Body Composition Analysis". You will be contacted with a confirmed appointment date and time.

  • Name
  • Student PID number
  • Preferred appointment dates and times
Body Composition Analysis at The Zone (PC Plaza) is available on a walk-in basis on Wednesdays from 11:00AM - 11:45AM (Weeks 2 - 10).


NOTE:  Registered UCSD students receive one FREE body comp per academic quarter.