Vitamin B12
Vitamin B12 is essential for red blood cell formation, neurological function, and DNA synthesis. Vegetarians/vegans and older adults are at greater risk of deficiency.
What is it for?
💡 Absorption: Methylcobalamin is the preferred active form. Cyanocobalamin is also effective. Sublingual may improve absorption in people with digestive issues.
⚠️ Caution: No known toxicity at high doses as it is water-soluble. Essential to supplement in vegan diets. In those under 18, use only under medical/pediatric supervision.
Recommended doses
Range: 500 – 2000 mcg
Methylcobalamin form preferred
📚 Scientific references (2)▼
Ficha tecnica oficial del NIH. RDA: 2.4mcg/dia para adultos. Deficiencia comun en veganos y mayores de 50. Metilcobalamina es la forma activa.
Revision sobre deficiencia de B12 en mayores. Prevalencia del 10-15% en mayores de 60. Puede causar anemia megaloblastica y dano neurologico irreversible.
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