Vitamin B6 (pyridoxine) is a water-soluble vitamin crucial for metabolism, brain development (neurotransmitters), immune function (antibodies), and red blood cell formation
(hemoglobin), found in foods like chickpeas, tuna, poultry, bananas, and fortified cereals, with recommended daily intakes varying by age
(around 1.3-1.7 mg for adults), but excessive amounts (over 100 mg/day) can cause sensory nerve damage.
Key Functions
Metabolism: Helps break down proteins, carbs, and fats.
Brain Health: Essential for making neurotransmitters (like serotonin and dopamine) and supports cognitive function.
Immune Support: Needed for antibody production to fight infections.
Hemoglobin Production: Carries oxygen in red blood cells; deficiency can cause anemia.
Food Sources
Rich Sources: Chickpeas, tuna, salmon, beef liver, chicken, pork, potatoes, bananas, fortified cereals, and leafy greens.
Recommended Intake (RDA)
Adults (14-50): 1.3 mg/day.
Adults (50+): 1.5 mg (women) to 1.7 mg (men).
Pregnancy/Lactation: Up to 2 mg/day.
Side Effects of High Intake (Toxicity)
Taking too much (over 100 mg/day for extended periods) can lead to sensory neuropathy, causing burning pain, numbness, loss of balance, and severe nerve damage.
Deficiency
Rare but can occur with poor diet, alcohol dependence, or certain medications, leading to anemia, confusion, depression, and weakened immunity.