howtosupplement
Deficiency/Women/Heart

Vitamin B6

Essential B vitamin that corrects low B6 status and may help pregnancy nausea and homocysteine balance in adults.

Vitamin B6

Vitamin B6

65
score
B
evidence
Caution
risk
Quick Take

Best for low B6 status or pregnancy nausea; avoid chronic high-dose products unless a clinician advised them.

Vitamin B6 is a water-soluble vitamin found in poultry, fish, potatoes, chickpeas, bananas, and fortified cereals. In the body it becomes pyridoxal 5'-phosphate, a coenzyme used to make neurotransmitters, hemoglobin, and to metabolize homocysteine. Best-supported uses are correcting low B6 status, helping nausea in pregnancy, and lowering homocysteine, usually alongside folate and B12. It is most useful for people with low intake or blood levels and some women with PMS or pregnancy nausea.

Proven Benefits

01
Corrects vitamin B6 deficiency
02
Reduces nausea in pregnancy
03
Lowers homocysteine
04
May reduce PMS symptoms
05
May modestly lower stroke risk

Protocol

Amount
2-5 mg
Frequency
Once daily
When
With food if it upsets your stomach; otherwise any time of day — consistency matters more than timing.

Onset Time

Days for nausea relief; 2-4 weeks for low-status symptom improvement

Who Should Consider

Adults with low plasma PLP or low dietary intake
Older adults with poor appetite or regular alcohol use
Pregnant women with nausea (with clinician guidance)
Women with recurring PMS symptoms
People using isoniazid, hydralazine, or penicillamine

Food Sources

  • Chickpeas (~1.1 mg per cooked cup)
  • Salmon (~0.8 mg per 100 g)
  • Chicken breast (~0.5 mg per 100 g)
  • Baked potato (~0.4 mg per medium potato)
  • Banana (~0.4 mg per large banana)
  • Fortified cereal (~0.5-2 mg per serving)

How It Works

Vitamin B6 is converted to PLP, a coenzyme for amino-acid metabolism. PLP is required to synthesize neurotransmitters like serotonin, dopamine, and GABA, make hemoglobin, and move homocysteine through transsulfuration, which is why low B6 can affect nerves, mood, and blood markers.

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