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B vitamins, including B12, are water-soluble and dont necessarily need to be taken with food for absorption
The concern about kidney load is more commonly associated with peptides that stimulate significant systemic hormone production or with impurities in research-grade sources
For individuals with low vitamin B12 levels or difficulty absorbing nutrients through diet alone, this method can be especially beneficial
Litwack, Human Biochemistry
What organ is affected by B12 deficiency
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