Vitamin B1, also known as thiamine, is an essential nutrient that plays a crucial role in energy metabolism, nerve function, and the production of neurotransmitters. The vitamin B1 test is a blood test that measures the levels of thiamine in the bloodstream. This test may be ordered by a healthcare provider if they suspect a person has a deficiency in vitamin B1 or if they exhibit symptoms of vitamin B1 deficiency, such as muscle weakness, fatigue, or cognitive impairment. The test may also be used to monitor the effectiveness of vitamin B1 supplementation in individuals with a deficiency. The normal range for vitamin B1 levels in the blood is 70-180 ng/L.
