---
title: "Vitamin B1 (Thiamine) Blood Test (LC‑MS/MS)"
description: "It measures thiamine status in blood to help evaluate deficiency risk and guide follow-up; order through Vitals Vault with Quest collection and PocketMD."
canonical: "https://www.vitalsvault.com/biomarkers/vitamin-b1-thiamine-blood-lc-ms-ms"
last-updated: 2026-08-22
---

# Vitamin B1 (Thiamine) Blood Test (LC‑MS/MS)

> It measures thiamine status in blood to help evaluate deficiency risk and guide follow-up; order through Vitals Vault with Quest collection and PocketMD.

---

Canonical HTML: https://www.vitalsvault.com/biomarkers/vitamin-b1-thiamine-blood-lc-ms-ms
- [llms.txt](https://www.vitalsvault.com/llms.txt)
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