Vitamin B12 plays a crucial role in nerve function, red blood cell production, and brain health. When levels fall too low, the body often sends warning signals that are easy to overlook or misattribute to stress, aging, or unrelated conditions. In many cases, these signs appear gradually and may occur together, increasing the risk that a deficiency goes unrecognized.
Below are eight unusual yet medically documented indicators that the body may be struggling with insufficient vitamin B12. When multiple symptoms appear at the same time, medical testing is often necessary to determine whether a deficiency is present.
🚩 1. “Pins and Needles” or Numbness in Hands and Feet
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