I think that's the big question like, "What is the definition here?" What you'll see out in the community, what doctors are doing is pretty much falling into three buckets of definitions, right, and how they're making that diagnosis, how they're making that definition
Minimizing Methylmalonic Acid Levels A potential problem with the IOMs method for determining B12 requirements (see Institute of Medicines Recommendations above), is that a small percentage of people with neurological symptoms of B12 deficiency have normal blood parameters, including 13% of patients in one series of case studies (Lindenbaum, 1988)
significantly detected leucopenia and the decrease of IgY and IgA concentrations in serum, as well as the weightlessness of thymus, spleen, and bursa in chicks after OTA exposure [99]
So, embrace these nutrients, care for your skin, and let your inner radiance shine through
Vendors group all three under the "peptide blend" label because that is the market they sell into, not because the chemistry agrees
Avoid supplements with non-halal gelatin capsules (opt for vegetarian capsules)
