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Test Prep

Prepare properly, get accurate results

Each test has its own preparation requirements. Following them closely is the single biggest factor in getting an accurate reading — we can't guarantee results, or offer a free retest, if protocols weren't followed.

DEXA Body Composition

No fasting required

Cannot be pregnant, over ~350 lbs, or have had a GI contrast/radionuclide procedure within 7 days.

  • Skip an intense workout the same day (80%+ max HR for 12+ minutes triggers afterburn/EPOC, which can affect readings for up to 48 hours).
  • Drink normal amounts of water — no special hydration protocol needed.
  • No fasting required, but avoid a large meal 1–2 hours prior.
  • Wear workout or casual clothing with minimal metal — small zippers/rivets are fine.
  • Empty your pockets and remove watches, belts, glasses, and jewelry before scanning.
  • Remove your shoes; socks are fine.

For clients around 250 lbs+, a left-arm or visceral fat reading can't always be guaranteed due to scanner limitations.

Resting Metabolic Rate (RMR)

Fasting required

Fast for 5–6 hours minimum before your test — water only. Most people fast overnight and book an early appointment.

  • No intense exercise within 24 hours prior — afterburn can elevate your metabolism for up to 48 hours.
  • No caffeine, other stimulants, depressants, or smoking on the day of your test.
  • Workout, casual, or business clothing is fine — you'll simply relax in a chair.
  • Get a normal night's sleep beforehand.

VO2 Max

Fasting recommended

Obtain medical clearance before this test, especially with a heart condition, joint issues, or relevant medications — this is a maximal-effort treadmill test.

  • Avoid a large meal a few hours before testing; arrive fasted for best results (at least 3 hours).
  • If also booking RMR same day, fast the required 5–6 hours for that test instead.
  • No exercise the day of your test — come in with fresh legs.
  • Skip caffeine and stimulants on test day.
  • Wear (or bring) workout clothes and athletic shoes.

Advanced Arterial Assessment

One simple rule

Please avoid caffeine before this test — it can affect blood pressure readings.

No other special preparation is required. The assessment is quick, seated, and non-invasive.

Styku™ 3D Scan

Self-guided
  • We'll show you how to run the scan — you complete it yourself with a quick profile setup.
  • Wear tighter-fitting clothing so the device accurately captures your body.
  • Put your hair up for a more accurate neck measurement.
  • The scan itself takes about 30 seconds; allow 15–30 minutes total with setup.
  • Your report is emailed directly to you — we don't review it with you in person.

Questions about prep?

Call or text us before your appointment and we'll walk you through exactly what to do.