Your vitamin D level — and how well your body actually uses it. The Vitamin D Plus test measures both your circulating vitamin D (25(OH)D) and your Vitamin D Metabolite Ratio (VMR) — a more advanced marker that reveals how efficiently your body is metabolising vitamin D. Two people with identical vitamin D levels can have very different VMRs, meaning very different responses to the same supplementation regime. The standard test alone can't tell you this. What you get 25(OH)D level — your circulating vitamin D in ng/mL, measured against clinical reference ranges Vitamin D Metabolite Ratio (VMR) — how effectively your body metabolises vitamin D Personalised plain-English interpretation of your results Trend tracking across repeat tests, so you can see what's working Downloadable PDF report you can keep or take to your GP What's in the box Dried Blood Spot (DBS) collection card 2 × lancets Alcohol wipe Gauze pad Step-by-step instructions for use Reply-paid return envelope How it works Order your kit (free Australia-wide shipping), collect a small finger-prick sample at home onto the dried blood spot card (takes 2 minutes), drop the reply-paid envelope into any Australia Post box, and read your full report online within 3–5 working days of the lab receiving your sample. The science Your sample is analysed by ID LC-MS/MS — Isotope-Dilution Liquid Chromatography Tandem Mass Spectrometry with C-3 epimer separation. The gold-standard reference method used by hospital pathology labs, not the cheaper immunoassays most home tests use. Our method has been clinically validated against the DEQAS-certified serum reference method: 96.9% sensitivity, 97.2% specificity, R² 0.97 correlation between finger-prick and venous draw. No GP referral required Order, collect, and receive your results without ever stepping into a clinic. We always recommend discussing clinically significant results with your doctor. Vitamin D Test is operated in Australia by Masdiag Pty Ltd. This product is intended for general informational use and is not a substitute for clinical advice from a qualified healthcare professional.
