Since AHK-Cu works by influencing cell behavior over time, irregular use produces irregular results
intravenous TB-4 Phase 1 safety and pharmacokinetics, no dose-limiting or serious adverse events (Ann N Y Acad Sci 2010;1194:223229): NCT00743769 Centers for Disease Control and Prevention
If you have diagnosed pernicious anaemia, Crohn's disease, coeliac disease, or have undergone gastric surgery , oral supplements may not be adequate regardless of form
A 2020 study found that high blood concentrations of vitamin B12 may be linked to an increased risk of all-cause mortalityyikes (8)
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Also, it aids in maintaining the nerve cells and is a component in DNA construction