What Level of Vitamin B12 is Too Low? An In-Depth Guide
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3 min read
According to the National Institutes of Health, approximately 3.6% of U.S. adults aged 19 and older have a vitamin B12 deficiency, with rates rising significantly among older adults. Understanding what level of vitamin B12 is too low is crucial for identifying this potentially serious condition and its widespread health impacts, which can range from fatigue to permanent nerve damage.