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Because the fatty tissue has fewer blood vessels than muscle, the absorption is more of a steady trickle than a rush
Delayed Treatment: Vitamin B12 deficiency left untreated for longer than 3 months may cause permanent spinal cord and nerve damage
Make sure the needle is inserted smoothly and steadily into the muscle tissue
How to Spot the Signs of a Reaction Its completely normal to experience a little redness, mild pain, or slight swelling right at the injection site
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