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Vitamin B1 (Thiamine) deficiency??

I recently had blood work done (non-fasting) for vitamin B1 deficiency. My levels came back as 6. Everywhere I have found it documented says that normal levels are from 8-30 in plasma, but my test says normal levels are from 4-10 and I don't think that is correct. Is my B1 low? I've been having persistent tingling for months now. I'm 22, female, healthy weight and balanced diet. I have paresthesia, fatigue, headaches and digestive upset, all with no explanation..
1 Responses
1756321 tn?1547095325
Lab result ranges are based on the type of test used. My tingling issues were due to vitamin B12 deficiency. I can highly recommend the sublingual (under the tongue) vitamin B12 spray to try out and see if your symptoms resolve.

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Thanks for your answer, however my vitamin b12 is normal. It is my vitamin B1 that is low. It was a plasma test, not a whole blood sample, and every online criteria, even from quest diagnostics, drugs.com, and a few others say that plasma blood levels of vitamin B1 should be between 8-30 units so I was wondering if anyone else knew the standard.
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620923 tn?1452915648
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