VAN B12

Vitamin B12 (Cobalamin) – Overview

Chemical Name: Cobalamin
Main Forms: Methylcobalamin, Cyanocobalamin, Hydroxocobalamin, Adenosylcobalamin
Solubility: Water-soluble
Source: Animal products (meat, eggs, dairy, fish); fortified foods; supplements

Functions:

• Red blood cell formation: Prevents megaloblastic anemia.

• Nervous system health: Maintains the myelin sheath around nerves.

• DNA synthesis: Essential for cell replication.

• Energy metabolism: Helps convert food into energy.

Deficiency Symptoms:

• Fatigue, weakness

• Numbness or tingling in hands and feet

• Memory issues or cognitive decline

• Megaloblastic anemia

• Mood changes or depression

Daily Requirement (Adults):

• Approximately 2.4 micrograms per day

Special Notes:

• Vegetarians/vegans are at higher risk for deficiency and may require supplements.

• Absorption requires intrinsic factor, a protein produced in the stomach.

• Deficiency may be more common in older adults and people with gastrointestinal disorders.