mineral

Boron supplements

Half of the 3,339 boron supplements in the NIH label database that print an amount list 1 mg or less per serving; the middle half list 0.3 mg to 2 mg, and 1 in 302 of the 3,322 with a plausible amount give more than the adult upper limit at the most servings their labels direct (DSLD version 9.4.0, January 2026). The 38 products whose only supplement ingredient is boron list a median of 3 mg, and 1 in 38 of them give more than the upper limit.

How much boron do supplements contain?

The median product lists 1 mg per serving. One in ten lists 0.15 mg or less, one in ten 3 mg or more. The amount printed most often is 1 mg (708 products).

How do the amounts compare with the Daily Value and the upper limit?

The adult Tolerable Upper Intake Level is 20 mg a day (total intake from food, water and supplements). At the most servings their labels direct, 11 of the 3,322 products with a plausible amount (0.3%) give more than that from the supplement alone (what counts as plausible).

The upper limit is for total intake from food, water and supplements unless stated, and does not apply under medical supervision. A label amount is what the maker printed. This is data, not advice: the NIH ODS fact sheets explain what each nutrient does.

Which products list the most boron?

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).

• Cal/Mag/Zinc ComplexNature's Life100 mg
• EcdyvarIllicit Labs100 mg
• 50+ Women's DailyecoNugenics38 mg
• Bio Boron 30 mgPure TheraPro Rx30 mg
• Mega+ MultivitaminFeel Great Vitamin Co.27 mg
• Muscle RecoverySignature Supplements25 mg
• CalciumVitabase20 mg
• Super 1 DailyCarlson20 mg

Have the amounts changed over the years?

Products whose current label entered DSLD in 2011 list a median of 1 mg; those entered in 2025, 1 mg.

In which products and brands?

Brands listing it most: Douglas Laboratories (176), Nature's Way (71), Trace Minerals Research (66), ProCaps Laboratories (50), Life Extension (47), Thorne Research (43), GNC Women's Ultra Mega (43), Country Life (42), Pure Encapsulations (41), GNC Mega Men (40).

Every product listing boron

3,916 products, A to Z by name (page 57 of 79), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

• Prenatalcare/of2 mg
• PrenatalAlani Nu1 mg
• PreNatal BlendSuperNutrition · off the market3 mg
• Prenatal BlendSuper Nutrition1.5 mg
• Prenatal DHA + FolateSalaam Nutritionals0.113 mg
• Prenatal EssentialsSeeking Health1 mg
• Prenatal Essentials ChewableSeeking Health1 mg
• Prenatal Essentials Methyl-FreeSeeking Health1 mg
• Prenatal FormulaGNC Women's0.15 mg
• Prenatal Formula with IronGNC · off the market0.15 mg
• Prenatal Formula With IronGNC Women's0.15 mg
• Prenatal Formula without IronGNC · off the market0.15 mg
• Prenatal Formula without IronGNC Women's0.15 mg
• Prenatal ForteIntegrative Therapeutics0.084 mg
• Prenatal Multi365 Everyday Value1 mg as transcribed, likely a slip
• Prenatal Multi Vitamin & MineralNature's Way · off the market0.75 mg
• PreNatal Multi-NutrientsVital Nutrients0.5 mg
• Prenatal One Advanced MultivitaminRainbow Light · off the market1 mg
• Prenatal One MultipleAN Amazing Nutrition Amazing Formulas1 mg as transcribed, likely a slip
• Prenatal One MultivitaminRainbow Light · off the market1 mg
• Prenatal PetiteRainbow Light · off the market1 mg
• Prenatal Petite Mini-TabletRainbow Light · off the market1 mg
• Prenatal Petite Mini-Tablet MultivitaminRainbow Light · off the market1 mg
• PreNatal Plus DHA CompleteBuried Treasure Liquid Nutrients · off the market3 mg
• PreNatal Plus DHA Daily MultiBuried Treasure Liquid Nutrients3 mg
• Prenatal ProDesigns for Health1 mg
• Prenatal SAPNFH0.7 mg
• Prenatal SupportWindmill1 mg
• Prenatal SupremeAdaptogen Research1 mg
• Prenatal Triple Power MultivitaminsSuper Nutrition SimplyOne · off the market2 mg
• Prenatal with IronGNC Women's0.15 mg
• Prenate ChewableAvion Pharmaceuticals0.25 mg as transcribed, likely a slip
• Prenate Chewable ChocolateAvion Pharmaceuticals0.25 mg as transcribed, likely a slip
• PrenatVite PlusAUM Pharmaceuticals0.2 mg
• PrenatVite RxAUM Pharmaceuticals0.2 mg
• Prescriptive Formulas Optimal Vitamin Packs Men'sNature's Bounty · off the market0.15 mg
• Preseries Bulk Blue RaspberryTransparent Labs3 mg
• PrimalEu Naturalin a blend
• Primal Damage ControlPrimal Blueprint0.5 mg
• Primal T1st Phorm5 mg
• Primary Nutrition4 Today · off the market3 mg
• PrimasurgeJacked Factory JF · off the market5 mg
• PrimasurgeJacked Factory10 mg
• Prime TestPrime Labsin a blend
• PrizmBELDT Labs0.5 mg as transcribed, likely a slip
• Pro BonoOrtho Molecular Products · off the market10 mg
• Pro-Equalizer Protein CapsulesDouglas Laboratories · off the market0.0015 mg as transcribed, likely a slip
• Pro-Equalizer Protein PowderDouglas Laboratories0.05 mg
• ProCerv HPTheralogix0.25 mg as transcribed, likely a slip
• ProFemaPure Essencein a blend

Where next?

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