b12 2000 mg injection side effects diarrhea Shots And How To Treat Them Are Vitamin B12 Shots Right
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doi: 10.1038/nprot.2012.024

When you combine vitamin D and B12, they can help boost your overall health and address key nutrient gaps that many people experience

Tuba-Kartal and ala-Mutlu, 2020

Suboptimal B12 causes brain fog, difficulty concentrating, mood changes, tingling extremities, and progressive neurological decline

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Though it is naturally found in foods like fish, meat, and dairy, it is sometimes added to foods, and used in capsule form as a dietary supplement
