Article: Vitamin B12
Vitamin B12
Vitamin B12 (cobalamin) is a vitamin essential for normal nervous system function, red blood cell formation, and energy metabolism. It also participates in cell division processes, contributes to normal psychological function, and helps reduce feelings of fatigue and tiredness.
What are the benefits of Vitamin B12?
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Supports nervous system function
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Contributes to red blood cell formation
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Important for cell division
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Participates in energy metabolism
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Helps reduce fatigue and weakness
Possible symptoms of Vitamin B12 deficiency:
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Fatigue and lack of energy
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Difficulty with memory or concentration
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Numbness and tingling in hands and feet
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Balance or coordination disorders
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Tongue sensitivity, redness or burning
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Mood swings, irritability or depressed mood
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Vision changes, especially with more severe or prolonged deficiency
Natural sources of Vitamin B12
Vitamin B12 is mainly found naturally in animal products – liver, meat, fish, eggs, and dairy products. It is almost absent in plant products, so it is important for vegans to ensure an adequate intake of vitamin B12. Available supplement forms include capsules, tablets, or liquid preparations.
Recommended Vitamin B12 intake
The recommended daily allowance of vitamin B12 for adults is approximately 4 µg. Different amounts of vitamin B12 are used in supplements, depending on the product's composition and purpose. The exact dose of additional vitamin B12 should be chosen according to the individual's needs.
Possible side effects and interactions of Vitamin B12 with medications
Vitamin B12 is generally well tolerated, but in rare cases, headaches, nausea, or skin rashes may occur. It can interact with some medications, such as metformin and acid-reducing drugs, which can decrease vitamin B12 absorption. If taking these medications, additional vitamin B12 intake should be discussed with a doctor or pharmacist.
