Vitamin D (1, 25 Dihydroxy)

1,25‑Dihydroxy Vitamin D is the biologically active metabolite that directly influences calcium absorption and bone remodeling. This test draws a single venous blood sample and measures only this active form, providing a clearer picture when routine 25‑hydroxy vitamin D results are inconclusive. Results may support conversations with a healthcare professional about bone strength, immune resilience, or unexplained fatigue, making it valuable for adults at risk of osteoporosis or those seeking a deeper understanding of their vitamin D status. The package covers the laboratory analysis of the 1,25‑Dihydroxy marker, a comprehensive results report, and a brief tele‑consultation for interpretation. A £50 phlebotomy fee applies for each collection visit.