b12 injection side effects sore throat Vitamin and Safety Benefits of B12 Injections for

For maintenance in chronic conditions, monthly injections are typical

Obviously, you can see how a diet lacking in sufficient animal products would lead to a higher risk of vitamin B12 deficiency

B-12 - contraindicated in Lebers disease (optic atrophy)

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or if you follow a vegan or vegetarian diet, its still possible to increase your vitamin B12 status during pregnancy

This makes it a highly targeted tool for metabolic research