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Initial response time also depends on: Severity of the B12 deficiency Frequency of injections Underlying health conditions Absorption and metabolism differences If youre getting your first B12 shot, your provider may start you on a more aggressive schedule, such as weekly injections until your levels are normalized
B12 helps produce the amino acid tryptophan, which is a big part of what makes us fall asleep at night
Your energy factories and cell processes are restarting and need time to recover and find their rhythm again
Vitamin B12 performs many functions in the body
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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