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 76 of 243), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

• Fem BalanceAOR Advanced Orthomolecular Research Advancedanother unit
• Fem EssentialsMetagenicsanother unit
• Fem PrenatalMetagenicsanother unit
• Fem'O'VitaHolin9.71 mcg
• Fem-ViteVinco's400 mcg
• Femagen Iron PlusGenestra Brandsanother unit
• Femagen PMS CapsulesGenestra Brandsanother unit
• Femagen PMS TabletsGenestra Brandsanother unit
• Femagen TabletsGenestra Brands · off the market150 mcg
• Femagen TLIGenestra Brandsanother unit
• Female BalanceNOWanother unit
• Female Balance With Wild Yam, Vitex, Dong Quai And GLANOW · off the market133 mcg
• Female EnergyVitarol · off the market400 mcg
• Female FertilityNature's Craftanother unit
• Female LongevityVitarol · off the market400 mcg
• Female MultinutrientBioCare400 mcg
• Female MultipleSolgaranother unit
• Female Reproductive FactorsMNP Michael's Naturopathic Programsanother unit
• Female Reproductive FactorsMichael's Naturopathic Programsanother unit
• Female Reproductive FactorsMH Michael's Health Naturopathic Programsanother unit
• Female Super PackDouglas Laboratories450 mcg
• Female TotalityAdvanced Nutrition by Zahleranother unit
• Female Y CapsulesDouglas Laboratories · off the market800 mcg
• FemBalanceAdaptogen Research400 mcg
• FemesseArthur Andrew Medical100 mcg
• FemGuard + BalanceDesigns for Healthanother unit
• Feminene Female Support FormulaMarket America400 mcg
• Feminene Female Support FormulaPrimeanother unit
• Feminine CareJeunique · off the market300 mcg
• Feminyl +BioPerineApproved Scienceanother unit
• FemOneMetabolic Maintenanceanother unit
• FemOne PlusMetabolic Maintenance2,500 mcg
• FemquilXYMOGENanother unit
• Femteen SymmetryVitanica400 mcg
• FEONYX 1 mg/150 mgAmella Pharmaanother unit
• FeotronDC133 mcg
• FeRiva 21/7Avion Pharmaceuticalsanother unit
• Fermented Coenzyme B ComplexNew Chapteranother unit
• Fermented Iron ComplexNew Chapteranother unit
• Fermented Soy EessenceJarrow Formulas · off the market75 mcg
• Fermented Vitamin B ComplexNew Chapteranother unit
• Feroglobin CapsulesVitabiotics400 mcg
• Feroglobin Liquid OriginalVitabiotics300 mcg
• Ferralet 90Mission Pharmacal1,000 mcg
• FerraPlus 90 TabletsTrigen Laboratories1,000 mcg
• FerrasorbThorne Research · off the market400 mcg
• FerrasorbThorneanother unit
• Ferrex 150 Forte Plus CapsulesBreckenridge Pharmaceutical1,000 mcg
• Ferro-CDouglas Laboratories · off the market100 mcg
• Ferrochel Iron CompletePureFormulas800 mcg

Where next?

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