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Vitamin B12

Also known as: methylcobalamin, cyanocobalamin, cobalamin

AAdequate Evidence62/1001 studies referenced

Common dosage

1000mcg daily

Category

vitamin

Description

Essential for nerve function, red blood cell formation, and DNA synthesis. Deficiency is common in plant-based diets and older adults.

Safety & interactions

Methylcobalamin form preferred. Water-soluble — excess is excreted. Sublingual may be better absorbed.
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Studies on Vitamin B12 (1)

Health domains

Cognitive performanceImmune function

Questions about Vitamin B12

ProtocolEngine provides general health information based on published research. This is not medical advice. Consult a healthcare professional before starting any supplement or health protocol.