A complete safety, timing, and dosage guide for combining Vitamin B9 (Folate, Folic Acid, Methylfolate) with Vitamin B6 (Pyridoxine) — including how the two supplements interact, the best time of day to take each, and which populations should be careful.
Yes, you can take vitamin B6 and vitamin B9 together safely. They are complementary B vitamins that work together in homocysteine metabolism and are commonly combined in B-complex supplements.
Vitamin B6 and vitamin B9 together are a safe and synergistic pair. They work together to metabolize homocysteine, and taking them together is common and beneficial for cardiovascular and neurological health. No known negative interactions exist at standard supplemental doses.
Vitamin B6 (as pyridoxal 5'-phosphate) acts as a cofactor for cystathionine beta-synthase and cystathionine gamma-lyase, two enzymes that convert homocysteine to cysteine via the transsulfuration pathway. Vitamin B9 (as folate derivatives) works with vitamin B12 to remethylate homocysteine back to methionine. These two pathways are the primary ways the body clears homocysteine, so B6 and B9 support each other without competing. Both are water-soluble vitamins, meaning they are absorbed differently and do not compete for the same transport proteins. High-dose folic acid can mask a B12 deficiency, but this is not related to B6.
You can safely take vitamin B6 and vitamin B9 together, and there is no need to separate them. I recommend taking them in the morning with breakfast, since water-soluble B vitamins are best taken early to avoid any mild stimulation. If you use a B-complex, it already contains both, so there is no need to calculate. If you miss a dose, just take it with your next meal; do not double up. For absorption, take them with a glass of water—no special coating or acidic conditions are required.
Pyridoxine HCl is the common, inexpensive form of B6 and works fine for most people; pyridoxal 5'-phosphate (P5P) is the active form and may bypass a conversion step, but it is not essential. Folate comes as folic acid (the synthetic form used in fortified foods and most supplements), folinic acid, and L-methylfolate (5-MTHF). People with an MTHFR polymorphism may benefit from L-methylfolate, but it is more expensive. For the purposes of combining with B6, folic acid is generally adequate unless you have a known methylation issue.
These two vitamins are routinely bundled together in B-complex supplements, prenatal multivitamins, and homocysteine support formulas alongside vitamin B12. They are also common in energy and nerve-health products.
Yes, you can take them at the same time. They actually work together in your body, so I usually recommend taking them together, ideally with breakfast. There is no known negative interaction.
Yes, it is safe to take them every day in standard supplement doses. The tolerable upper limit for B6 is 100 mg/day and for folic acid is 1,000 mcg/day from supplements, so staying below those levels is fine.
There is no wait time needed. You can take them at the same time, or with any time gap, because they do not interfere with each other's absorption.
No, they do not compete. Both are water-soluble B vitamins, but they use separate absorption mechanisms and are not known to interfere. Many B-complex supplements combine them without any issue.
Most people can take them safely, but those with Parkinson's disease taking levodopa should avoid high-dose B6. Also, if you have an unexplained B12 deficiency, talk to your doctor before taking high-dose folic acid, as it can mask a B12 deficiency.
I recommend taking them with food to prevent mild nausea. Taking them with breakfast is a good habit because water-soluble vitamins get excreted quickly, and a morning dose helps maintain blood levels through the day.
Reviewed by Caroline M. on April 8, 2026 for accuracy against the sources listed above. This page is educational and is not a substitute for professional medical advice.
The matrix has 86 supplements and 7310 pairwise interactions. Click any cell to see the full breakdown.