B12 is primarily found in animal-based foods such as meat, dairy, and eggs, and is absorbed in the small intestine after binding to a protein
its deficiency causes anemia, fatigue, and weakness
Without sufficient B12, this sheath can weaken, which may explain symptoms such as tingling, numbness, memory issues, or brain fog. From an energy standpoint, B12 supports the methylation cycle , a chemical pathway involved in energy metabolism and detoxification
Cyanocobalamin use during pregnancy
Subcutaneous injection was chosen as 5A-1MQ specifically has poor oral bioavailability in mice, a phenomenon that does not occur in rats 26
But if you are deficient, correcting that deficiency can restore the energy and metabolic function that low B12 drains, and that can make weight loss easier