ORDER
Place your order
Order online, no GP referral required for direct-access tests.
Practitioner grade
Practitioner only
Vitamin D blood test
Check your vitamin D status
Measures 25-hydroxyvitamin D, the marker used to assess vitamin D status.
What it measures
- 25-Hydroxyvitamin D (25-OHD)
Test details
CollectionSee product page
Results in24 hours
LabNutriPath
Practitioner consult session
A 15-minute consultation. An email link will be included in your order confirmation to make the booking.
Optional 1:1 with our clinical team · $49
Clinician-reviewed report
Plain-English + GP PDF
Direct-access ordering
Clinical interpretation included
Sample to result
From sample to actionable answer.
Direct-access pathology and assessments. Every result is reviewed by a clinician before it reaches you.
RECEIVE
Get your form or kit
Email pathology form, postal collection kit, or assessment link within 1–2 business days.
COLLECT
Collect or complete
At any pathology network, at home, or online, depending on the test.
RESULTS
Clinician-reviewed report
Plain-English summary plus GP-formatted PDF. Share with your practitioner or keep private.
What it measures
25-Hydroxyvitamin D (25-OHD)
Blood (SST)
The circulating storage form of vitamin D. Reflects status over the preceding 2 to 3 months. The standard marker for vitamin D assessment.
Reference range: 100 to 150 nmol/L optimal, 75 to 100 adequate, under 50 deficient
How it works
Your practitioner will advise on collection. Follow the kit instructions and return your sample as directed.
Warnings: This is a health information tool and is not a diagnosis. Discuss your results with your practitioner before making changes to medication, supplements or treatment.
Real people. Real impact.
Patients following practitioner-designed protocols, sharing their outcomes in their own words.
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Frequently asked.
Common questions about how OptiLabs works: testing, supplements, clinician review, returns and timing.
Are the supplements safe?
All carry an AUST L designation from the TGA. Every order is reviewed by a clinician before dispatch.
Do I need a referral?
No. All tests are available to order directly. Our lab partner is NATA and RCPA accredited, operating as a direct-access pathology service.
Begin your investigation
Personalised health. Clinical rigour. Delivered to you.
A proper investigation into what's driving your symptoms, with a clinician-reviewed report, not a cryptic lab printout.