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Boron Upper Limit: What NIH Sets, What Food Provides and Why Label Amounts Matter
NIH's Office of Dietary Supplements sets the tolerable upper intake level for boron at 20 mg a day for adults 19 and over. Food and supplements together usually give about 1.0 to 1.5 mg a day. SodaPeak lists a boron amino acid chelate with a ceiling of 150 mg for the whole compound per serving, and does not say how much of that is boron.
Written by the SodaPeak label deskUpdated · 4 min read
The limit01
What is the boron upper limit?
20 mg of boron a day for ages 19 and up.
NIH ODS updated this in June 2022. The median dietary intake is about 0.87 to 1.35 mg a day, and the total from food and supplements about 1.0 to 1.5 mg a day (NIH ODS, Boron). An upper limit is the highest daily intake unlikely to cause harm for most people, not a target.
| Figure | Value |
|---|---|
| Upper limit, adults 19 and over | 20 mg a day |
| Median dietary intake | About 0.87 to 1.35 mg a day |
| Food and supplements together | About 1.0 to 1.5 mg a day |
| Very large amounts of boric acid or borax | 15,000 to 20,000 mg can be fatal |
SodaPeak02
What does the SodaPeak label say about boron?
It lists a boron amino acid chelate, last, with a ceiling of 150 mg per serving for the whole compound.
A chelate is boron bound to an amino acid, so the compound weighs more than its boron. The label does not give the boron share, so no figure can be compared with the 20 mg limit. The ceiling comes from blend arithmetic (21 CFR 101.36 (eCFR)), not a dose, and the boron page covers the rest.
- 1Horny goat weed0
- 2Tongkat ali0
- 3Saw palmetto0
- 4Nettle root0
- 5Wild yam0
- 6Sarsaparilla0
- 7Orchic substance0
- 8Boron amino acid chelate0
Each bar is the most that line can weigh once line 1 is set: at most the weight of line 1 (the list runs from heaviest to lightest) and at most the remainder shared by the lines above it. These are ceilings from arithmetic (21 CFR 101.36 (eCFR)), not the real amounts.
Claims03
Does NIH say boron affects testosterone?
No. The sheet does not address testosterone in men.
It notes only that boron might affect steroid hormone function, and that a low-boron diet might lower estrogen in postmenopausal women. Evidence for osteoarthritis and bone health is preliminary or inconclusive, and boron is not known to have clinically relevant medicine interactions (NIH ODS, Boron). This site makes no hormone claim.
SodaPeak Capsules: 60 per bottle30 servings of 2 capsules · 1, 2, 3 or 6 bottles · price shown at checkout
See packsWhat to do04
How do I stay within the limit?
Count boron from every product you take, and ask the seller for the boron content.
List your supplements
Multivitamins may also contain boron.
Ask for the boron share
Per serving, in mg of boron.
Tell a clinician
If you have kidney disease.
Ordering05
What about ordering?
The order buttons lead to checkout. Check your medicines with a clinician first.
This site makes no claim for boron.
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FAQ06
SodaPeak questions people ask
What is the boron upper limit?
20 mg a day for adults 19 and over, per NIH ODS.
How much boron do people usually get?
About 1.0 to 1.5 mg a day from food and supplements.
How much boron is in SodaPeak?
The label does not say. It lists a chelate with a 150 mg ceiling for the whole compound.
Does NIH say boron changes testosterone?
No. The fact sheet does not address testosterone in men.
Who wrote this07
Written and reviewed by
Pages built from the label, the seller brief and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is the information site for a USA Authorized SodaPeak Retailer. It is not the manufacturer, and it does not name one. We earn money when you buy through our order links.
Sources and links (2)
- Boron: Fact Sheet for Health Professionals NIH Office of Dietary Supplements, 2022
- 21 CFR 101.36 - Nutrition labeling of dietary supplements Electronic Code of Federal Regulations (U.S. National Archives / GPO), 2026
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