vitamin

Folate supplements

Half of the 7,022 folate supplements in the NIH label database that print an amount list 400 mcg or less per serving; the middle half list 200 mcg to 400 mcg (DSLD version 9.4.0, January 2026). The 123 products whose only supplement ingredient is folate list a median of 800 mcg.

How much folate do supplements contain?

The median product lists 400 mcg per serving. One in ten lists 100 mcg or less, one in ten 800 mcg or more. The amount printed most often is 400 mcg (2,828 products).

Which forms of folate do labels name?

Methylfolate (5-MTHF) is the form named most often: 2,069 of the 12,112 folate products (17%), ahead of folic acid (2,018, 17%) and folinic acid (159, 1%). A product naming two forms counts in both; the table below gives every form.

• Methylfolate (5-MTHF)
• Folic acid
• Folinic acid

Which products list the most folate?

On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).

• L-5-MTHF 25,500 mcg DFESeeking Health25,500 mcg
• Folic Acid 20 mgBio-Tech Pharmacal20,000 mcg
• L-Methylfolate Calcium 15 mgVirtus Pharmaceuticals15,000 mcg
• 5-MTHF 15 mgMetabolic Maintenance15,000 mcg
• 5-MTHF 15 mgFresh Nutrition15,000 mcg
• L-Methylfolate 15mgWoodstock Vitamins15,000 mcg
• 5-MTHF 10 mgMetabolic Maintenance10,000 mcg
• B-Complex + 10 mg 5-MTHFMetabolic Maintenance10,000 mcg

Have the amounts changed over the years?

Products whose current label entered DSLD in 2011 list a median of 400 mcg; those entered in 2025, 400 mcg.

In which products and brands?

Brands listing it most: Nature's Plus (197), Douglas Laboratories (180), Cellucor (73), Vitamin World (67), Country Life (67), Thorne Research (61), Nature's Way (60), Bronson (55), Sundown Naturals (54), Dymatize Nutrition (50).

Every product listing folate

12,112 products, A to Z by name (page 79 of 243), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

• Focus FastEnyotics Health Sciencesanother unit
• Focus Fast ExtremeEnyotics Health Sciencesanother unit
• Focus FizzBioGenesis Nutraceuticals · off the market400 mcg
• Focus FormulaVitabase225 mcg
• Focus Formula with Attention FactorsWindmill Health Products · off the market400 mcg
• Focus NowRise-N-Shineanother unit
• Focus SupportCovalent Medical50 mcg
• FocusAllHealthy Natural Solutions400 mcg
• FocusFactorFOCUSfactor400 mcg
• FOCUSfactorFocus Factor400 mcg
• FolacalThorne Research · off the market800 mcg
• FolaProMetagenicsanother unit
• FolaQOLOncoQOL · off the market15,000 mcg as transcribed, likely a slip
• FolateBIOVEAanother unit
• Folate & Vitamin B12 CapsLife Extension400 mcg
• Folate 1,000Pure Encapsulationsanother unit
• Folate 1,333 mcg DFESundownanother unit
• Folate 1,333 mcg DFESolgar · off the marketanother unit
• Folate 1,333 MCG DFE (800 MCG Folic acid)Solgar · off the marketanother unit
• Folate 1,333 mcg DFE (800 mcg Folic Acid)Country Lifeanother unit
• Folate 1,333 MCG DFE (Folic Acid 800 mcg)Solgaranother unit
• Folate 1,333 mcg DFE (Metafolin 800 mcg)Solgar · off the marketanother unit
• Folate 1,667 mcg DFE Orange BlastEZ Meltsanother unit
• Folate 1000 mcgPhysioLogics · off the market1,000 mcg
• Folate 1000 mcgtnvitamins1,000 mcg
• Folate 1000 mcg (As Metafolin)Solgar · off the market1,000 mcg
• Folate 1000 mcg (Metafolin 1,000 mcg)Solgar · off the marketanother unit
• Folate 1333 mcg DFEPuritan's Prideanother unit
• Folate 1333 mcg DFE (Folic Acid 800 mcg)Meijeranother unit
• Folate 400Pure Encapsulationsanother unit
• Folate 400 mcg (As Metafolin)Solgar · off the market400 mcg
• Folate 400 mcg DFE Orange FlavorCountry Lifeanother unit
• Folate 5,000Pure Encapsulationsanother unit
• Folate 5,000 PlusPure Encapsulationsanother unit
• Folate 5-Methyltetrahydrofolic Acid 400 mcgSwanson Ultra · off the marketanother unit
• Folate 5-Methyltetrahydrofolic Acid 800 mcgSwanson Ultra · off the marketanother unit
• Folate 5-Methyltetrahydrofolic Acid 800 mcgSwansonanother unit
• Folate 666 mcg DFEPuritan's Prideanother unit
• Folate 666 mcg DFE (400 mcg Folic Acid)Solgar · off the marketanother unit
• Folate 666 mcg DFE (400 mcg Folic Acid)Sundownanother unit
• Folate 666 Mcg DFE (Metafolin 400 MCG)Solgar · off the marketanother unit
• Folate 666 mcg DFE Folic Acid 400 mcgSolgar · off the marketanother unit
• Folate 800 mcg (As Metafolin)Solgar · off the market800 mcg
• Folate 800 mcg As MetafolinPhysioLogics · off the market800 mcg
• Folate 800 mcg DFENature's Wayanother unit
• Folate 800 mcg DFE Orange FlavorCountry Lifeanother unit
• Folate 800 mcg Orange FlavorCountry Life · off the market800 mcg
• Folate GoldNutriGold · off the market1,000 mcg
• Folate Gold 800 mcgNutriGold · off the market800 mcg
• Folate Gold 800 mcg DFENutriGold · off the marketanother unit

Where next?

• Check an amount of folate
• Labels above the upper limit
• All ingredients