Is Vitamin B1 in Whole Blood? A Comprehensive Guide to Thiamine Assessment
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4 min read
Over 90% of the total thiamine content in blood is present as thiamine diphosphate (TDP), the active form, which is concentrated within red blood cells. Therefore, the answer to the question, “is vitamin B1 in whole blood,” is a definitive yes, and testing whole blood is the most accurate way to evaluate long-term thiamine status.
