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Vitamin B12 plays an indispensable role in several vital biological processes: Nervous System: It is essential for the synthesis of myelin, the protective sheath around nerve fibres
Vitamin B12 is usually present in animal products, especially dairy products, poultry, eggs, and fish
The most widespread indicators include unexplained muscle weakness, a constantly sore or swollen tongue, chronic brain fog, tingling sensations or pins and needles in your hands and feet, persistent mood shifts, and a pale or yellowish skin tint
Pernicious anemia is a type of anemia that occurs when the body can't absorb enough vitamin B12 from the intestines
Nature Genetics 44 (10): 11521155
Dermatological reactions represent the most consistently documented side effect of excessive B12 intake
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