The three most commonly deficient vitamins — checked
The short answer
Basic Vitamin Deficiency Panel bundles 3 tests — Vitamin D, 25-Hydroxy, Vitamin B12 and Folate (Vitamin B9) — for $89.99 plus one $6 lab processing fee (about $30.00 per test). No fasting is needed; results post in 1–3 business days. Physician-authorized with no doctor's visit or insurance needed; one draw at Quest or Labcorp.
Other Labs
Starting at $169
+ lab fees
TestWell
$89.99
+ $6 lab processing fee
Vitamin D, B12, and Folate are the three most commonly deficient vitamins in the US population. Vitamin D deficiency affects an estimated 42% of American adults and is linked to fatigue, bone loss, depression, and weakened immunity. B12 deficiency causes neurological symptoms, anemia, and cognitive decline — especially in older adults and those on plant-based diets. Folate (B9) is essential for DNA synthesis, red blood cell formation, and is critical during pregnancy. This panel provides a quick, affordable screen for the three most impactful vitamin deficiencies. For a more comprehensive assessment including minerals, consider our Vitamin & Mineral Panel.
Focused vitamin-status check: Vitamin D, Vitamin B12, and Folate — the three most commonly deficient vitamins. Catches the most common reversible vitamin deficiencies driving fatigue, mood changes, and immune dysfunction.
Anyone with fatigue, mood changes, brain fog, hair thinning, frequent infections, or restrictive diet patterns (vegan, low-fat, malabsorption). Cheapest first-line vitamin workup.
Sample Type
Blood draw
Fasting
Not required
Results In
1–3 business days
Biomarkers
3 across 3 tests
3 individual tests · 3 biomarkers measured — each test linked so you can learn more.
No fasting required. No special preparation needed.
What can throw off this result
Physician-reviewed “Before your test” pages — what each factor does, for how long, and what to do about it.
A Basic Vitamin Deficiency Panel costs $89.99 at TestWell — $95.99 all-in when ordered alone, because the $6 lab processing fee is charged once per order, with no draw fee or physician fee added. Ordered directly from the labs' own consumer sites, the closest equivalent lists at $169.00 at Labcorp OnDemand (list prices checked Sep 12, 2026; see the notes on how the products differ). With insurance, what you pay depends on your deductible and your plan's negotiated rate; TestWell's price is fixed before the draw and is HSA/FSA-eligible.
| Where you order | Price | One test, all-in | Notes |
|---|---|---|---|
| TestWell (drawn at Quest or Labcorp) | $89.99 | $95.99 | Includes the one $6 lab processing fee, charged once per order |
| Labcorp OnDemand (Labcorp's own site) | $169.00 | $169.00 | Labcorp's panel adds markers beyond vitamin D, B12 and folate; compositions differ · list price checked Sep 12, 2026 |
43% less than the lower lab-direct list price, for the same draw at the same lab. Competitor prices are read from the linked public pages and re-checked regularly; the labs' sites may add taxes or change prices without notice.
Compare more: Quest Diagnostics price list · Labcorp price list · Quest vs Labcorp · Lab test price checker
Vitamin D, Vitamin B12, and Folate. 3 individual tests catching the most prevalent reversible vitamin deficiencies in one draw — the three vitamins clinically deficient in the largest share of US adults.
Basic Vitamin Deficiency Panel focuses on the three core vitamins ($89.99, 3 tests: D, B12, Folate). Vitamin & Mineral Panel at $189 adds minerals (Magnesium, Zinc, Calcium, Selenium, Copper) and more. Use Basic Vitamin Deficiency for a quick fatigue workup; Vitamin & Mineral for full nutritional status.
On TestWell, the Basic Vitamin Deficiency Panel is $89.99. Ordering the same tests separately would be about $155. Quest Direct lists comparable bundles at $169, walk-in hospital labs typically bill $400-600 without insurance.
No fasting required for Vitamin D, B12, or Folate. It does help to hold high-dose vitamin supplements for 24 hours before the draw so results reflect your true baseline rather than what you just took.
Vitamin D: 8-12 weeks after starting or changing a dose. B12: 6-8 weeks. Folate: 8 weeks. Always retest before increasing doses — Vitamin D is fat-soluble and can accumulate to toxic levels.
Basic Vitamin Deficiency Panel results are typically ready in 1–3 business days after your draw at Quest or Labcorp. TestWell emails you the moment they post, and your results dashboard shows each marker against its reference range with a plain-English explanation.
Common medications, biotin supplements and vitamin D supplements can change a Basic Vitamin Deficiency Panel result without anything being wrong. Common medications can lower Vitamin B12 — check B12 periodically on metformin. Biotin supplements can falsely raise 25-Hydroxy Vitamin D — stop biotin ≥72 hours before the draw. Vitamin D supplements can interfere with 25-Hydroxy Vitamin D — keep your normal routine; note dose for interpretation. Each factor is covered on our physician-reviewed "Before your test" pages; when one applies, the fix is usually to remove it and retest.
Order the Basic Vitamin Deficiency Panel online from TestWell for $89.99 (plus a $6 per-order lab processing fee) — no doctor's visit, referral or insurance needed. A licensed physician authorizes the order, then you walk into any Quest or Labcorp patient service center near you for the draw (the lab locator on our site lists the closest ones by ZIP code), and results arrive in 1–3 business days.
Medically reviewed by Youmna DiStefano, MD · Last reviewed September 2026
Starting at $169 at other labs
TestWell Price
$89.99
+ $6 lab processing fee at checkout
No insurance needed · HIPAA compliant
Individual tests that complement this panel
Basic Vitamin Deficiency Panel
$89.99