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Therefore, which one you choose will be based on your preferences, tolerance, and recommendation by your healthcare provider.

Several factors contribute to this decline

While oral supplements are available, B12 injections are often considered more effective because they deliver the vitamin directly into the bloodstream for improved absorption
Frontiers in Pharmacology, 14 , 1147414

2) Magnesium increases the activity of an important glutathione enzyme called glutathione peroxidase (GPx)
