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Magnesium, Vitamin B12, Iron & Ferritin Test Panel from Quest Health

Labbrary Test GradeUseful
Your Fit Score
Not calculated

Answer five questions to see how this panel matches your goals, budget, collection preferences, access, and support needs.

Calculate my fit

Labbrary's review, Fit Score, and basic comparison are free. The provider's panel, shipping, collection, clinician review, and other services are separate. About 2 minutes. No account required.

Measures vitamin B12, circulating iron, stored iron through ferritin and magnesium to help a clinician assess selected nutritional deficiencies or excesses.

Current price
$85 $91 with fees
Sample
Blood
Turnaround
2 to 3 days
Access
Direct Lab, Lab Visit, Order Online
Evidence & Key Facts
Source collectedLast source check September 13, 2026

Evidence basis. This named result reflects the sources and verification evidence listed on this page as of the date shown.

Best for

Iron Status, Micronutrients

Standout strength

Order online without a separate doctor appointment.

Important watch-out

The $85 test requires a $6 physician service fee, for a $91 total before optional services.

Magnesium, Vitamin B12, Iron & Ferritin Test Panel from Quest Health
Labbrary Test GradeUseful
Your Fit Score
Not calculated

Answer five questions to see how this panel matches your goals, budget, collection preferences, access, and support needs.

Calculate my fit

Labbrary's review, Fit Score, and basic comparison are free. The provider's panel, shipping, collection, clinician review, and other services are separate. About 2 minutes. No account required.

Measures vitamin B12, circulating iron, stored iron through ferritin and magnesium to help a clinician assess selected nutritional deficiencies or excesses.

Current price
$85 $91 with fees
Sample
Blood
Turnaround
2 to 3 days
Access
Direct Lab, Lab Visit, Order Online
Evidence & Key Facts
Source collectedLast source check September 13, 2026

Evidence basis. This named result reflects the sources and verification evidence listed on this page as of the date shown.

Best for

Iron Status, Micronutrients

Standout strength

Order online without a separate doctor appointment.

Important watch-out

The $85 test requires a $6 physician service fee, for a $91 total before optional services.

Labbrary+

The Test Grade. The Reason Behind It.

Potentially useful for the right buyer, with meaningful evidence, coverage, transparency, access, cost, terms, or privacy tradeoffs to review.

A lower grade does not mean a panel is a bad personal fit. Your Fit Score can be higher when its purpose, price, sample, access, or support matches what you need.

Explore the Full Methodology
Labbrary Test GradeUseful

Next step

Check the panel or research the provider

Prices, availability, and ordering requirements can change. Confirm the current details before purchasing.

View Exact Panel on Provider SiteView Quest Health profile

Scope, both directions

Inside the Panel. Beyond the Name.

Named measurements

  • Vitamin B12 (cobalamin)
  • Ferritin
  • Iron
  • Magnesium

Measured categories and focus areas

  • Nutrients
  • Iron Status
  • Micronutrients

Important limits and omissions

  • Individual HSA and FSA eligibility or reimbursement depends on the buyer's plan; Quest Health documents card acceptance and directs buyers to check their plan.
  • Quest Health's privacy notice does not publish a fixed data-retention period.
  • Quest Health charges a $20 non-refundable cancellation fee, purchases expire after 60 days without collection, and refunds are processed in 7 to 14 business days.
  • Quest Health does not submit purchases through the site to insurers or health plans, so insurance reimbursement is not available through this purchase route.
  • The exact offer does not publish a complete assay-method and analytical-performance description.

No broader panel in the Labbrary catalog lists every biomarker on this one for a lower listed price.

Counted among one-time lab-draw listings with a published price, matched by published biomarker names. That doesn’t mean the tests are equivalent. Updated October 2, 2026.

The full breakdown

Eight Dimensions.
One Named Result.

Open any row for the reasoning and evidence behind the named result.

quest-health-discovery-4afd98843c53133fe5fe6bb4521c measurement quality: The lab work itself is performed by Quest Diagnostics' CLIA-certified laboratories, ensuring the same quality as physician-ordered tests. The exact offer page identifies the panel's named measurements and collection route, while exact facility, assay method, and offer-specific analytical performance remain unpublished. Evidence status partial maps to partial. The provider-wide Quest Diagnostics CLIA laboratory evidence supports a plausible approach, but the exact facility, assay method, and offer-level performance remain unpublished, Limitation: Quest Diagnostics CLIA laboratory system is identified, but exact facility, exact assay method, and offer-specific analytical performance are not published.

quest-health-discovery-4afd98843c53133fe5fe6bb4521c target relevance: The page describes the test purpose for Magnesium, Vitamin B12, Iron & Ferritin Test Panel. Evidence status supported maps to confirmed. The retained exact-offer excerpt gives a direct purpose statement without a more detailed association or action boundary, scoring in the lower 80s on confirmed evidence. Limitation: The saved evidence supports this dimension with bounded scope.

quest-health-discovery-4afd98843c53133fe5fe6bb4521c coverage: on (see Signs & symptoms section below) What’s tested This test panel measures the level of 4 nutrients in your blood: vitamin B12 (cobalamin), magnesium, ferritin, and iron.   Vitamin B12 (Cobalamin) The Vitamin B12 Test measures the level of vitamin B12, also known as cobalamin, in the blood. Cobalamin is a water-soluble vitamin that helps your body. Evidence status partial maps to partial. The retained exact-offer excerpt contains a What is tested section and measurement detail, scoring in the middle 70s on partial evidence; the documented inventory limitation keeps the score below 80. Limitation: Rendered text may abbreviate the full measurement list.

quest-health-discovery-4afd98843c53133fe5fe6bb4521c interpretability: clear, easy-to-read report. If you have, or create, a MyQuest® account, your results may also be available there;and for larger panel tests, you may be able to see individual. Evidence status supported maps to confirmed. The exact-offer evidence identifies a clear report and MyQuest result access, supporting a middle 80s score on confirmed evidence. Limitation: The saved evidence supports this dimension with bounded scope.

quest-health-discovery-4afd98843c53133fe5fe6bb4521c transparency: Provider terms: a $20 non-refundable cancellation fee per order covers the Prescriptive Authority Provider; purchases expire 60 days after purchase if the sample is not collected; refunds process within 7-14 business days. Evidence status partial maps to partial. The retained provider-wide terms disclose cancellation, expiry, and refund conditions, but do not supply offer-specific method and laboratory details, scoring in the middle 70s on partial evidence. Limitation: Provider-wide terms, not per-offer.

quest-health-discovery-4afd98843c53133fe5fe6bb4521c practical access: Buy online with no doctor visit required; register the test; visit a Quest Patient Service Center or use Quest Mobile in-home collection where available. Not available in Arizona, Hawaii. Evidence status supported maps to confirmed. The exact-offer evidence states online purchase, Quest collection, and Quest Mobile where available, with state and local availability limits, scoring in the upper 70s on confirmed evidence. Limitation: The saved evidence supports this dimension with bounded scope.

quest-health-discovery-4afd98843c53133fe5fe6bb4521c cost and terms: Exact-offer price $85.00 plus a $6.00 Physician Service Fee; HSA/FSA cards accepted at checkout but individual eligibility is not confirmed. Evidence status supported maps to confirmed. The confirmed exact-offer price is 85.00 USD plus the 6.00 USD physician fee, or 91.00 USD before any other buyer-specific cost. Its deterministic cost tier is over 80 through 156 USD; a score in the 70s remains appropriate because HSA or FSA eligibility is not confirmed. Limitation: Eligibility of HSA/FSA funds is not confirmed.

quest-health-discovery-4afd98843c53133fe5fe6bb4521c privacy: Quest Consumer is not a HIPAA covered service; the privacy notice describes collection, use, and sharing with affiliates and third parties. Evidence status partial maps to partial. The provider-wide privacy evidence covers collection, use, and sharing with affiliates and third parties, but no per-offer retention period is published, scoring in the middle 70s on partial evidence. Limitation: Provider-wide notice, not per-offer.

Under the hood

Follow the Evidence.

Every published claim should trace to a dated source. Missing evidence remains visible instead of being filled with assumptions.

Source 1Recorded for this record. Last source check September 13, 2026.View source
Source 2Recorded for this record. Last source check September 13, 2026.View source
Source 3Recorded for this record. Last source check September 13, 2026.View source
Source 4Recorded for this record. Last source check September 13, 2026.View source

True total cost

The Price. Plus the Details.

Pricing for Magnesium, Vitamin B12, Iron & Ferritin Test Panel
ItemCurrent disclosed priceNote
Panel$85Verify the checkout total, shipping, and collection fees before ordering.
Physician service fee+ $6Per test, added at checkout. Checked September 29, 2026. Source
Total at checkout$91Listed price plus the required fees above, before tax and any optional services.
HSA/FSA paymentNot confirmedHSA/FSA payment eligibility has not been confirmed from provider documentation.
Optional servicesNot confirmedClinician review, subscriptions, and retesting discounts are listed only when documented.

Price status. This record shows disclosed pricing. Checkout costs can change and should be verified before purchase.

Your data

Your Data. Your Questions.

Privacy details are scored only when source documentation is available. Unconfirmed retention, deletion, research use, or marketing practices remain unconfirmed.

Reading the labels

What Has Been Checked?

Source collected

Evidence labels stay separate from the Test Grade. They show how much source support exists for the evaluation.

The balance

The Strengths. The Tradeoffs.

Strengths

  • Order online without a separate doctor appointment.
  • Results are typically available within 2-3 business days after providing your sample, including processing, testing and clinical review.
  • HSA/FSA payments are accepted. Confirm your plan requirements; reimbursement is not guaranteed.
  • The exact offer page and purchase state document a current price of $85 USD.
  • Quest Health allows online purchase without a separate doctor visit; an independent healthcare provider handles the order and a $6 Physician Service Fee applies.
  • Quest Health delivers results through a secure email link, and results may also be viewable in a MyQuest account.
  • Quest Health's privacy notice explains how Quest Consumer uses and discloses information to affiliates and third parties.

Watch-outs

  • The $85 test requires a $6 physician service fee, for a $91 total before optional services.
  • Fasting for 8-12 hours is required. Discuss supplements and medications with your clinician before collection.
  • Collection is unavailable in Arizona, Hawaii and Puerto Rico. Confirm an eligible location before purchase.
  • For ages 18-100. An adult must purchase the test.
  • Grading review is incomplete; no numeric grade is available.
  • Optional Quest Mobile home collection costs an additional $79 where available and is limited to adults. Check your ZIP code before booking.
  • HSA and FSA cards are accepted at checkout, but eligibility and reimbursement for this exact offer depend on the buyer's plan.
  • A $20 non-refundable cancellation fee applies. Purchases expire 60 days after purchase if a sample is not collected, and refunds are processed in 7 to 14 business days.
  • Quest Consumer's privacy notice describes collection, use, and disclosure to affiliates and third parties. A fixed retention period is not published.
  • Collection is unavailable in Arizona, Hawaii, and Puerto Rico. Quest Mobile availability is checked by ZIP code before scheduling.
  • Quest Health does not submit purchases through the site to insurers or health plans, so insurance reimbursement is unavailable through the purchase route.

Take it with you

The Test Truth Card

The key facts from this review in one compact card.

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Verification History

September 13, 2026Recorded source date.Source collected

Affiliate disclosure. Some outbound links may earn Labbrary a commission. Affiliate relationships never influence a Test Grade.

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