Janoshik also diluted his sample before testing, so the difference cannot be explained simply as undiluted versus diluted. Dustin said Vanguard probably used different strips with different dilution requirements
Vitamin B12, Mayo Clinic, Vitamin B12, Fact Sheet for Consumers, National Institutes of Health, Office of Dietary Supplements, Pernicious anemia, Cleveland Clinic, Ganipisetti VM, Naha S
One sample per household
PMID:34368359 Kannt A, et al
They could also have serious bleeding
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