MetabolicMarkers

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Osteoporosis Risk Blood Tests: Bone Turnover & Mineral Markers

Measure the bone turnover, mineral, and hormone markers that shape long-term bone strength.

Affiliate disclosure: we earn a commission when you purchase lab tests through links on this site, at no extra cost to you. Learn more

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Bone Essentials Panel $239.16 with code (reg. $298.95); Bone Plus Comprehensive Panel $667.96 (reg. $834.95); individual bone tests from $11.96, promotional pricing at time of writing.

At a glance

The Osteoporosis Risk Assessment is a collection of blood panels and individual lab tests that measure the markers behind bone strength: bone turnover (P1NP, CTX, BSAP, osteocalcin), mineral and vitamin status (vitamin D, calcium, phosphorus, magnesium, PTH), and the thyroid and sex hormones that influence bone remodeling. It is designed for postmenopausal women, men over 50, and adults with risk factors for bone loss who want objective data to review with their doctor. Tests can be ordered online without a doctor's visit, with results often available in 24 to 48 hours.

Best suited for

  • Postmenopausal women and men over 50 who want to monitor age-related bone changes
  • Anyone with height loss, stooped posture, or a prior low-impact fracture
  • People with risk factors such as long-term steroid use, low BMI, smoking, or heavy alcohol use
  • Those with thyroid, parathyroid, kidney, or malabsorption conditions, or a family history of osteoporosis
  • Adults who want baseline bone health labs to review alongside a DEXA scan

What's included

Bone Essentials Panel (6 tests, 7 biomarkers)

Bone Plus Comprehensive Panel (22 tests, 47 biomarkers)

Bone Specific Alkaline Phosphatase (BSAP) Test

Osteocalcin N-MID Test

PTH Intact Test

QuestAssureD Vitamin D 25-Hydroxy Total Test with D2 and D3

Vitamin D 1,25-Dihydroxy Test

Calcium Test

Phosphate (as Phosphorus) Test

Magnesium Test

Comprehensive Metabolic Panel (CMP)

FSH Test

Testosterone Total Female Test

Testosterone Total Male Test

Serum Protein Electrophoresis (SPEP) Test

Deep-dive the key markers: Vitamin D, Total Testosterone, Estradiol, TSH, eGFR, ALT

Key biomarker ranges

Commonly used adult reference ranges for markers this panel measures, labs vary, so always interpret results against your lab's stated ranges and with your doctor.

Vitamin D (25-OH) (ng/mL)

Commonly used cutoffs: below 20 ng/mL deficient, 20–30 insufficient, 30–60 a frequently cited target band; season and supplementation move levels substantially.

Vitamin D (25-OH) reference ranges (ng/mL)
ZoneRange
Deficient0–20 ng/mL
Insufficient20–30 ng/mL
Sufficient30–60 ng/mL
High60–100 ng/mL
Total Testosterone (ng/dL)

Adult male ranges shown; commonly used reference ranges run roughly 300–1,000 ng/dL, with morning draws the standard since levels peak early in the day.

Total Testosterone reference ranges (ng/dL)
ZoneRange
Low0–300 ng/dL
Normal range300–1000 ng/dL
High1000–1200 ng/dL
Estradiol (pg/mL)

Adult female follicular-phase ranges shown; estradiol varies widely across the cycle and drops after menopause, so cycle timing is essential to interpretation.

Estradiol reference ranges (pg/mL)
ZoneRange
Low0–30 pg/mL
Follicular range30–150 pg/mL
High150–250 pg/mL

The importance of testing

Bone loss usually develops gradually and without obvious symptoms, which is why many people first learn about it after a fracture. Blood testing offers a window into bone metabolism itself, the ongoing cycle of bone formation and resorption, so you and your doctor can see how your skeleton is being maintained, not just how dense it currently is.

The markers in this assessment fall into three groups. Turnover markers such as P1NP, CTX, bone-specific alkaline phosphatase (BSAP), and osteocalcin reflect how quickly bone is being built and broken down. Mineral and vitamin markers, vitamin D (25-OH), calcium, phosphorus, magnesium, and parathyroid hormone (PTH), show whether your body has the raw materials and regulation needed for bone maintenance. Hormone markers, including thyroid (TSH, free T4/T3), estradiol in women, and testosterone in men, capture the endocrine signals that strongly influence bone remodeling.

Because turnover markers respond to change faster than bone density does, they are useful for tracking trends: a baseline now gives you something concrete to compare against after diet, exercise, supplement, or therapy changes. Morning, fasting samples are often preferred for CTX and P1NP, and results arrive in private, trend-friendly reports, often within 24 to 48 hours.

These labs do not replace a DEXA bone density scan. Instead, they complement one by flagging factors associated with bone loss, such as low vitamin D, abnormal PTH, or hormone shifts, that you can review with your clinician when deciding on next steps.

Part of our complete guide to Women's Health Lab Tests — browse every panel and biomarker guide in this hub.

Promo code

ULTAA95F

Save 20% with code ULTAA95F, current promotion; confirm final pricing on the partner page.

Ready to get your numbers? Order online, visit a nearby draw site, and receive private results to review with your doctor.

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Frequently asked questions

Can I order osteoporosis blood tests without a doctor's visit?

Yes, no doctor's visit is needed to place an order, and the lab provides the physician requisition. You order online, visit one of 2,100+ draw sites (most visits take 15 to 30 minutes), and receive private results, often within 24 to 48 hours, to review with your own provider.

Do these blood tests replace a DEXA bone density scan?

No, blood tests complement a DEXA scan rather than replace it. A DEXA scan measures current bone density, while these labs measure bone turnover, mineral, vitamin, and hormone markers associated with bone loss, giving you and your clinician more context about what may be driving any changes.

Which bone health markers should I start with?

A practical baseline includes vitamin D (25-OH), calcium, phosphorus, magnesium, PTH, a comprehensive metabolic panel, TSH, and one bone turnover marker such as CTX or P1NP. Sex hormone tests, estradiol for women, testosterone for men, can be added depending on your age and clinical context, ideally in discussion with your doctor.

Do I need to fast before bone marker testing?

Morning, fasting samples are often preferred for bone turnover markers such as CTX and P1NP. Follow the instructions shown at checkout or your provider's guidance, avoid biotin supplements for 24 to 72 hours before testing if advised, and hydrate normally unless told otherwise.

Is this testing available in every US state?

No, direct-to-consumer lab testing is restricted or prohibited in New York, New Jersey, and Rhode Island, so residents of those states may be blocked at the partner's checkout. Availability and result turnaround can also vary by draw-site location.

Will my insurance be billed?

No, pricing is transparent, cash-pay only, and HSA/FSA cards are accepted. That means no surprise bills, and the price you see at checkout (after any promo code) is what you pay.

References

  1. [1] Vitamin D - Health Professional Fact Sheet — NIH Office of Dietary Supplements
  2. [2] Evaluation, Treatment, and Prevention of Vitamin D Deficiency: An Endocrine Society Clinical Practice Guideline — Endocrine Society (Journal of Clinical Endocrinology & Metabolism)
  3. [3] Vitamin D - Health Professional Fact Sheet — NIH Office of Dietary Supplements
  4. [4] Testosterone and Health Outcomes — Institute of Medicine / National Academies Press (NCBI Bookshelf, NIH)
  5. [5] Effect of 1 Week of Sleep Restriction on Testosterone Levels in Young Healthy Men — JAMA (Journal of the American Medical Association)
  6. [6] Testosterone Levels Test — MedlinePlus (National Library of Medicine, NIH)
  7. [7] Evaluation and Management of Testosterone Deficiency (2024) — American Urological Association
  8. [8] The Normal Menstrual Cycle and the Control of Ovulation — Endotext, NCBI Bookshelf (NIH)
  9. [9] Estradiol — StatPearls, NCBI Bookshelf (NIH)
  10. [10] Hot Flashes: What Can I Do? — National Institute on Aging (NIH)
  11. [11] The Female Athlete Triad/Relative Energy Deficiency in Sports (RED-S) — Revista Brasileira de Ginecologia e Obstetrícia
  12. [12] TSH (Thyroid-stimulating hormone) Test — MedlinePlus (National Library of Medicine, NIH)
  13. [13] Thyroid Function Tests — American Thyroid Association
  14. [14] Subclinical Hypothyroidism — StatPearls, NCBI Bookshelf (NIH/NLM)
  15. [15] Physiology, Glomerular Filtration Rate — StatPearls, NCBI Bookshelf (NIH)
  16. [16] Stages of Chronic Kidney Disease (CKD) — National Kidney Foundation
  17. [17] What Is Chronic Kidney Disease in Adults? — NIDDK (NIH)
  18. [18] Is It Time for a Requiem for Creatine Supplementation-Induced Kidney Failure? A Narrative Review — Nutrients
  19. [19] Estimated GFR (eGFR) Test: Kidney Function Levels, Stages, and What to Do Next — National Kidney Foundation
  20. [20] Alanine Aminotransferase (ALT) Test — StatPearls, NCBI Bookshelf (NIH)
  21. [21] Definition & Facts of NAFLD & NASH — NIDDK (NIH)
  22. [23] Liver Function Tests — StatPearls, NCBI Bookshelf (NIH)

Reviewed by

Jason August

Jason August

Founder & Editorial Lead

Jason August is the founder of Metabolic Markers and its parent company, Advancing Development. He has spent his career building and scaling real-world ventures, including as a founding team member at Build-A-Bear Workshop during its growth from startup to global public company, and since then across capital, real estate, adaptive reuse, and hospitality. He founded Metabolic Markers to make blood-biomarker testing easier to understand and access, and oversees the site’s content and editorial accuracy. Jason is not a medical professional; all content on this site is educational, reviewed for accuracy, and never a substitute for advice from a licensed physician.

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