Test price
$30
Magnesium
Not in a metabolic panel, so it is missed unless asked for. The check for cramps, twitches, and palpitations.
Often checked for
Muscle crampsTired all the timeSupplement check-insPalpitationsMigraine contextMedication check-ins
A quick visit, under 15 minutesBlood draw
$30
Paid at checkout. Nothing due at the lab.
Not approved? Full refund.
Not available in NY, NJ, RI, AZ, OK, MA, or PA.
What to expect
Clinician review fee
$15
None
Nothing to do ahead of time. Water is fine.
Blood draw
A standard blood draw at the lab.
Any of 2,000+ lab locations
Walk in or book ahead. Your signed lab order works at any of the listed locations for this test. No lab visits in NY, NJ, RI, AZ, OK, MA, or PA.
Ask about this test
What do you want to know?
AI-generated. For information only, not medical advice or a diagnosis.
About this test
A mineral behind muscle, nerve, and heart rhythm that standard chemistry panels do not include. Often checked for cramps, low energy, or supplement tracking.
Vitamin D, B12, folate, iron, and magnesium are nutrients commonly checked for tiredness, low mood, and tingling. Each is a single blood level.
Checking a few together is common, since the symptoms overlap. On a plant-based diet, B12 and iron are the usual first checks.
Reading your result
Magnesium drops with low intake, alcohol, diuretics, some acid reducers, and gut losses such as chronic diarrhea. It rises mainly when the kidneys cannot clear it or with heavy supplement use.
Blood levels change slowly and reflect only a small share of body stores, so a recheck after changing intake is usually spaced weeks apart. Kidney function is read alongside, since the kidneys decide how much magnesium the body keeps.
How it works
Test not approved? Full refund.
01
Choose your test
Pick from 469 tests. Every order is reviewed by a licensed clinician.
02
A clinician reviews it
A licensed clinician reviews your order and signs it if appropriate. If not, full refund.
03
2,000+ locations
Visit a lab anywhere
2,000+ locations, near home or traveling. Walk in or book ahead.
04
Get your results
In your dashboard, next to the lab’s reference ranges. Yours to keep.
Lab Pass
Review fees covered.One membership.
Every order includes a licensed clinician review. Lab Pass replaces the $15 fee with one flat membership.
TSH
Any test on the menu
$40
Clinician review
Included with Lab Pass
$15$0
$15 /mo$150/yr
Join at checkout with any test. Cancel anytime online, with no cancellation fee; coverage runs to the end of the period you paid for.
Real science, real answers
Clinical-grade, start to finish.
Every order is reviewed by a licensed clinician, and every test runs at a CLIA-certified laboratory.
CLIA-certified labs
Every available lab is certified under the Clinical Laboratory Improvement Amendments, meeting both state and federal standards with regular independent inspections.
Clinician-reviewed reports
Every result is reviewed by an independent, board-certified physician licensed in your state.
HIPAA-compliant, always
Your health data is encrypted at bank-grade standards. We never sell it, never share it without your consent.
Questions
Before you order.
The things people ask most. Anything else, our care team answers by phone, text, or email.
No. Tell us what you want tested, and a licensed clinician in your state reviews your order. When it’s appropriate, they sign a lab order that works at any of the listed locations for this test.
The price on this page is the test price, and nothing is due at the lab. Checkout shows your total before you place the order.
Most of the 2,000+ lab locations take walk-ins, and many let you book a time online. Your signed lab order works at any of the listed locations for your test.
You’re refunded in full. If the clinician approves some tests but not others, you’re only charged for the approved ones.
HIPAA-compliant, always. Your health data is encrypted at bank-grade standards. We never sell it, never share it without your consent.
Everywhere lab tests are informational and don’t diagnose conditions on their own. Available to adults 18 and older; test availability varies by lab location. Talk with your care team about what your results mean for you. Orders are reviewed and, when appropriate, signed by a licensed clinician in your state. If a test isn’t approved, you receive a full refund. All testing is performed at CLIA-certified laboratories. Your results are private and protected. Everywhere is not for emergencies: if you think you may be having a medical emergency, call 911 or go to the nearest emergency room.