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Why Most People Need Vitamin B12 Supplementation

Story at-a-glance

  • According to the U.S. Department of Agriculture, nearly 40 percent of the U.S. population have marginal vitamin B12 status and 9 percent are deficient

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This is an older article that may not reflect Dr. Mercola’s current view on this topic. Use our search engine to find Dr. Mercola’s latest position on any health topic.

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