Vitamin B6

Supports protein metabolism, glycogen breakdown and neurotransmitter production.

1.3–1.7mg/day adults

Why it matters

Vitamin B6 (pyridoxine) is involved in over 100 enzymatic reactions, primarily in amino acid metabolism. It is essential for the breakdown of glycogen (stored glucose) into usable energy, the synthesis of neurotransmitters including serotonin and dopamine, and the production of haemoglobin. Like other B vitamins it is water-soluble and must be replenished regularly.


For endurance athletes

Athletes with high protein intake and training loads have elevated B6 requirements. Low B6 can impair glycogen breakdown reducing the availability of stored energy during exercise and reduce haemoglobin production. It also supports cognitive function and mood, which matter for motivation and training consistency.


Signs of deficiency

  • ·Fatigue and irritability
  • ·Mouth sores and tongue swelling
  • ·Weakened immune function
  • ·Confusion (severe)

Best food sources

  • ·Poultry and fish
  • ·Potatoes and starchy vegetables
  • ·Bananas
  • ·Fortified cereals
  • ·Chickpeas and legumes

Track Vitamin B6 automatically

MOVE logs micronutrients from every food you eat and shows sport-specific context alongside your numbers.

Other water-soluble vitamins

Vitamin CVitamin B12Folate (B9)Thiamine (B1)Riboflavin (B2)Niacin (B3)