Vitamin B12 is essential for nerve function, red blood cell production, and DNA synthesis — and low levels can show up as fatigue, brain fog, balance issues, numbness or tingling, and mood changes often written off as normal stress or aging.

cells and DNA.

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It’s also important for protein metabolism and the conversion of carbohydrates into glucose (3).

Cause Of Vitamin B12 Deficiency

Vitamin B12 cannot be produced by the body, it has to be ingested. Most people suffering from B12 deficiency simply aren’t getting enough of the nutrient in