Vitamin B12 is a vital nutrient that keeps the body running.
Without enough of it, people can develop anemia, fatigue, brain and nerve problems, and even cognitive decline. Most people get enough vitamin B12 from their diet or supplements.
Elevated Vitamin B12 Levels May Signal Hidden Disease
Doctors explain the real role of vitamin B12, safe intake levels, and when to get checked.
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Ellen Wan
Author
Ellen Wan has worked for the Japanese edition of The Epoch Times since 2007.
