how long b12 injection last Benefits of Injections for Optimal Health How Long Does a B12

This includes the following patient groups: - Those who follow a strictly vegan diet - Those over the age of 50 - Those who take certain medications that are known to inhibit the absorption of B12 - Those who have an autoimmune disorder - Those who have gastrointestinal disorders - Those who have issues with stomach ulcers, atrophic gastritis, and other similar health problems SYMPTOMS OF A B12 DEFICIENCY Whether you fall into any of the categories above or not, there are certain signs to be aware of that could mean that you are suffering from a vitamin B12 deficiency

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This occurs when serum levels are high but the B12 isnt being properly taken up by tissues

You may find that mild redness is normal in the first few days, but it shouldnt get worse - and it should go away on its own