PlainVitamins

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.

Products listing it
3,9163,339 print an amount; 343 list it inside a blend without an amount
Median per serving
1 mgmiddle half 0.3 mg to 2 mg
Adult upper limit (IOM)
20 mg11 products go above it a day

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).

Products by amount of boron per serving

3,572 products, log scale; extreme 0.2% at each end left out of the drawing.

Boron: products by amount per serving0.01 mg0.1 mg1 mg10 mg100 mgUpper limit 20 mg
Boron: products by amount per serving0.01 mg0.1 mg1 mg3 mg10 mg100 mgUpper limit 20 mg
Boron: products by amount per serving0.01 mg0.1 mg1 mg3 mg10 mg30 mg100 mgUpper limit 20 mg
Boron: products by amount per serving0.01 mg0.03 mg0.1 mg0.3 mg1 mg3 mg10 mg30 mg100 mgUpper limit 20 mg
Boron: products by amount per serving0.01 mg0.03 mg0.1 mg0.3 mg1 mg3 mg10 mg30 mg100 mgUpper limit 20 mg
The amounts printed most often
Amount per servingProductsFor example
1 mg708 Coral Calcium Plus (MicroTech Professional Formulations); Mega Vita-Gel (Vitamin World); Green Source (Radiance)
3 mg499 Complete Minerals Ultra Strength (Viva Vitamins); Bone-Active Bone Reinforcer With Hydroxyapatite (Vitamin World); Super Mineral Juice Peach Pizzaz (Trace Minerals Research)
2 mg469 Sport (GNC Mega Men); Maximum Nutrition Vanilla Bean (GNC Mega Men); Maximum Nutrition Vanilla Creme (GNC Women's Ultra Mega)
0.15 mg342 Daily Multiple (Rexall Sundown Naturalist); Heart Health Support Pack (Nature's Bounty); Theravim-M (Nature's Bounty)
0.5 mg255 One 'N' Only Men's Formula (Pure Essence Labs); Mega Vita-Min (Radiance); Ultra Vita-Min Iron Free (Puritan's Pride)
1.5 mg193 LifeEssence (Pure Essence Labs); Extra Strength Estroven (Estroven); FortiSalt Gourmet (FortiSalt)
5 mg83 Calcium Orotate 745 (LifeLink); Osteo Forte Orotate 00 (LifeLink); Calcium Plus With 250 mg Calcium As MCHC (Martin Avenue Pharmacy)
0.25 mg81 Calcium Ultra (CVS Pharmacy); Daily Essentials (VAXA International); Calcium 600 mg Plus With Vitamin D & Minerals (Sunmark)
0.1 mg73 Ionic Iron 22 mg (Trace Minerals Research); Diabetic Multi (Bronson); Ultra-Pro Vanilla (Douglas Laboratories)
0.75 mg65 Liquid Calcium Magnesium Orange Flavor (Tropical Oasis); Liquid Calcium Magnesium (Tropical Oasis); Weight Management Pack (Douglas Laboratories)

Source: Supplement Facts rows of every product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0; amounts in one measure (weight).

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.

Sources: 21 CFR 101.9(c)(8)(iv) (Daily Values); Institute of Medicine, DRI summary tables (2011) (upper limits); on reading them, the FDA's Daily Value page.

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).

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.

Median boron per serving by the year the label entered DSLD (years with 20+ products)
YearProductsMedian per serving
2011961 mg
20123241 mg
20133231 mg
20141791.1 mg
20151591 mg
20162221 mg
20172042 mg
20181451 mg
20191651 mg
20203021 mg
20212391.5 mg
20223051 mg
20233011 mg
20243131 mg
20252951 mg

Source: DSLD label entry dates and amounts, current labels.

In which products and brands?

Products listing boron by DSLD product type

Boron by product typeOther Combinations2,868Multi-Vitamin and Mineral (MVM)287Botanical with Nutrients233Mineral176Single Vitamin and Mineral3Amino acid/Protein2Fiber and Other Nutrients1Botanical1
Boron by product typeOther Combinations2,868Multi-Vitamin and Mineral (MVM)287Botanical with Nutrients233Mineral176Single Vitamin and Mineral3Amino acid/Protein2Fiber and Other Nutrients1Botanical1
Boron by product typeOther Combinations2,868Multi-Vitamin and Mineral (MVM)287Botanical with Nutrients233Mineral176Single Vitamin and Mineral3Amino acid/Protein2Fiber and Other Nutrients1Botanical1
Boron by product typeOther Combinations2,868Multi-Vitamin and Mineral (MVM)287Botanical with Nutrients233Mineral176Single Vitamin and Mineral3Amino acid/Protein2Fiber and Other Nutrients1Botanical1
Boron by product typeOther Combinations2,868Multi-Vitamin and Mineral (MVM)287Botanical with Nutrients233Mineral176Single Vitamin and Mineral3Amino acid/Protein2Fiber and Other Nutrients1Botanical1

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 45 of 79), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

Where next?