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Vitamin B6 helps in the formation of red blood cells, making proteins, and neurotransmitters
Vitamin B3 (Niacin)
As people age, they sometimes have trouble absorbing vitamin B12, even when taking pills by mouth, which is when vitamin B12 injections may be considered
NHS Guidelines on Self-Administering B12 Injections The NHS supports patient self-administration of B12 injections where clinically appropriate and following adequate training
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