oral vs injectable b12 Vitamin Injections vs. Supplements: Which Is Better? Oral vs. Intramuscular Vitamin B12

Vitamin B12 injections are also used by people with impaired vitamin B12 absorption or deficiency called Pernicious anaemia caused by: Inadequate dietary intake of B12 Loss of gastric parietal cells in chronic atrophic gastritis Structural damage or surgical resection of the small intestine or stomach Long-term use of acid regulating medication Alcoholism Gastric banding surgery Celiacs disease Pernicious anaemia Crohns disease Until now, injection of methyl-B12 has required a needle

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Nor do fiveor even fiftyloading doses provide long-lasting protection for people with other B12 absorption issues

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Age: absorption naturally slows as we get older, so timing can shift over the years