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You have a confirmed, symptomatic deficiency: When a deficiency is significant and affecting daily life, a provider may recommend injections as part of the treatment plan
B12 (1000 g per week)
The time it takes to feel less tired after a B12 injection can vary
What's the proper way to get rid of the needles and vial after use
PMID 25824066
Physical stamina: As your red blood cells begin to function more efficiently and carry oxygen better, you may start to feel your strength returning, which can make everyday activity and exercise easier
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