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Every batch is tested for bacterial endotoxins, which may not exceed the threshold limits defined in USP 85
Most people get B12 from food such as meat, fish, eggs, or dairy
When B12 levels are insufficient, this protective coating can deteriorate, leading to improper nerve function and ultimately nerve damage
After an additional three washings with PBS, positive signals were developed with an enhanced chemiluminescence kit [2]
PMID 30261596
A peer-reviewed study by the National Institutes of Health shows that B12 absorption depends on the presence of intrinsic factors in the stomach
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