Vitamin B6
Full ranking Dose tool Products (6,518)
Key facts
Sources: https://ods.od.nih.gov/factsheets/VitaminB6-HealthProfessional/ · FDA DV 1.7 mg (https://www.fda.gov/food/nutrition-facts-label/daily-value-nutrition-and-supplement-facts-labels); pre-2016 DV [2] (https://www.federalregister.gov/documents/2016/05/27/2016-11867/food-labeling-revision-of-the-nutrition-and-supplement-facts-labels); adult UL 100 mg
Daily dose across products (mg/day)
Label data from official national databases and brand websites, as declared; not lab-verified.
Common forms
| Form | Products | Median | P5–P95 | Elemental fraction |
|---|---|---|---|---|
| Pyridoxine HCl | 4401 | 6 mg | 0.61 – 100 | — |
| Pyridoxal 5-phosphate (P5P) | 1539 | 10 mg | 0.5 – 100 | — |
Common questions
What is the Daily Value for Vitamin B6?
The US FDA Daily Value for adults and children aged 4 and over is 1.7 mg. It is a labelling reference, not a personal recommendation. [source]
Is there an upper limit for Vitamin B6?
The adult Tolerable Upper Intake Level (UL) is 100 mg per day. Going above it long term raises the risk of adverse effects. See the linked source. [source]
How much Vitamin B6 do products usually contain per day?
As of 2026-11-01, 6,518 products list a comparable daily dose (6,928 dose records; one product can have several). The median is 6 mg per day, and 90% of records fall between 0.5 and 100 mg. Figures come from labels and are not lab-tested. [source]
What are the side effects of Vitamin B6?
People almost never get too much vitamin B6 from food. The main risk of high-dose supplements is nerve damage (see next answer); other signs of too much include painful, unsightly skin patches, extreme sensitivity to sunlight, nausea and heartburn. (Source: NIH ODS) [source]
What happens if you take too much Vitamin B6?
The US adult UL is 100 mg a day from all sources. Taking high amounts for a year or longer can cause severe nerve damage and loss of control of body movements; symptoms usually stop when the supplements stop. In 2023 EFSA set a lower adult limit of 12 mg a day. (Source: NIH ODS) [source]
Is Vitamin B6 safe during pregnancy and breastfeeding?
The recommended amount is 1.9 mg a day in pregnancy and 2.0 mg while breastfeeding. The American College of Obstetricians and Gynecologists recommends vitamin B6 supplements, under a doctor's care, for nausea and vomiting in pregnancy. (Source: NIH ODS) [source]
Does Vitamin B6 interact with medications or other supplements?
Vitamin B6 may worsen seizures and nerve damage from cycloserine, a tuberculosis antibiotic. Some epilepsy drugs lower B6 levels and their seizure control. Theophylline can lower B6 levels and cause seizures. (Source: NIH ODS) [source]
Top ranked
| Rank | Brand | Product | Per day | Score |
|---|---|---|---|---|
| 1 | Spring Valley | B6 100 mg | 100 mg | 97.8 |
| 1 | The Vitamin Shoppe | Vitamin B6 100 mg | 100 mg | 97.8 |
| 1 | The Vitamin Shoppe | Vitamin B6 50 mg | 50 mg | 97.8 |
| 4 | New Roots Herbal Inc. | B6-50 mg | 50 mg | 93.3 |
| 4 | GNC | GNC Vitamin B-6 100 mg Tablet | 100 mg | 93.3 |