What changes is the added B12 support and, in some cases, the overall experience
In the specific context of hearing and tinnitus, a conceptual link exists in the proposed brain-ear-heart axis, where neurotrophic factor supplementation to the cochlea could inhibit pathological protein aggregation and support neuronal health, potentially preventing conditions like AD and associated amyloid cardiomyopathy (Shityakov et al., 2021)
doi: 10.1073/pnas.1819234116
The small intestine, the primary site for iron absorption, is most affected by this, leading to increased oxidative stress
Nucleic Acids Res 42:1398113996
This test is more accurate but still misses a large portion of B12 deficiency AND is quite expensive to boot