vitamin b12 injection dose and frequency Dosage: 7 Facts Adults Should Know B12 Shots Dosage for Adults:

This is a need, not a want

If youre unsure whether B12 injections are right for you, consider these common situations: Youre feeling tired all the time, even with decent sleep and a routine You follow a vegan or vegetarian diet, which typically lacks sufficient B12 Youre over the age of 50, when natural absorption of B12 often declines

More specialized markers such as methylmalonic acid or homocysteine, which can clarify borderline cases, also take weeks to shift

There is an association with gastric antral vascular ectasia (which can be referred to as watermelon stomach), and pernicious anemia

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Adequacy of vitamin supply under maximal sustained workloads: the Tour deFrance