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Specific tests to help diagnose vitamin B12 deficiency are: Getting more vitamin B12 treats the deficiency
This distinction allows researchers to explore upstream metabolic regulation and cellular signaling mechanisms through a different experimental approach
B12 injections are especially useful for people with a B12 deficiency, which tends to stem from difficulties absorbing the nutrient, not falling short nutritionally, says Foxx
You can learn more about B12 treatment guidelines to see why getting this right is so important
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