# Vitamin B1, Whole Blood

> This test measures the amount of Vitamin B1, also called thiamine, stored in your blood cells. It helps show whether your body has enough of this nutrient to properly turn food into energy and support nerve function. This measurement is useful for evaluating symptoms like confusion, weakness, or tingling that may indicate a nutritional deficiency. However, this test only reports the vitamin level and does not diagnose the specific medical condition causing a deficiency.

- Labcorp code: 121186
- Category: [Nutrients](https://app.picardo.health/labs/tests/nutrients.md)
- Price: shown at checkout, before payment.
- Blood draw: free at a Labcorp location, or $75.00 at home.
- Order link: https://app.picardo.health/labs/order?tests=121186&ref=assistant

## About ordering

A licensed physician reviews every order before any test is run, and results arrive in the person's Picardo account. Ordering is open to adults 18 and over in the US, except New York, New Jersey, Rhode Island, Pennsylvania, Maryland, Massachusetts, Hawaii and Maine. General health information, not medical advice.