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Injection-site soreness lasting 24-36 hours (41% of reviews) Described as "mild to moderate" muscle ache at the injection site, comparable to post-vaccine soreness
This variety allows individuals to choose the method that works best for them
More on this: Vegan and vegetarian sources of B12 To diagnose a vitamin B12 deficiency, doctors A doctor may order blood tests if they suspect a person has a vitamin B12 deficiency, including a complete blood count and tests to check levels of B12 and folate in the blood
Moore E, Mander A, Ames D, Carne R, Sanders K, Watters D (2012) Cognitive impairment and vitamin B12: a review
The speed of B12 depends on your commitment to healthy lifestyle choices, which will accelerate its effectiveness
