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Description
One major advantage of intramuscular injection is that its increasingly effective at raising blood levels of B12
The link between B12 deficiency and autonomic nervous system failure is becoming increasingly clear in pediatric and adult literature alike
Many athletes report feeling more energetic after B12 injections, but this sensation often stems from correcting an unknown mild deficiency rather than the vitamin acting as a performance enhancer
Some medications can also affect vitamin B12 absorption in the gut
