Boron
A trace mineral studied for bone and hormone markers.
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What it is
Boron is a trace mineral found in fruits, vegetables, and nuts. It appears to influence how the body handles calcium, magnesium, and certain hormones.
How it works
Boron is a trace mineral that appears to influence how the body handles calcium, magnesium, and certain hormones, which is the rationale for its use around bone and hormone markers. Its exact mechanisms are still being worked out.
What it's been studied for
Taken to support bone health and, in marketing, hormone levels.
What the evidence shows
Some small studies suggest boron may affect bone-related minerals and hormone markers, but the clinical evidence is limited and preliminary. Not a proven standalone bone or hormone treatment.
Who should consider it
It's used mainly in bone and men's-health formulas. The clinical evidence is limited and preliminary, so it's best seen as a minor adjunct rather than a proven standalone.
Amounts commonly studied
Studies commonly use around 3 mg per day; more isn't clearly better.
How to take it
Studies commonly use around 3 mg per day; more isn't clearly better, and the safe upper limit is about 20 mg. It's usually a small component of combination products.
Forms & absorption
Boron citrate, glycinate, or aspartate; often in bone or men's formulas.
Food sources
Fruits (apples, pears, grapes), nuts, legumes, and leafy vegetables.
Safety & interactions
Safe at typical low doses; the safe upper limit is around 20 mg for adults. Avoid high-dose products.
Myths & what it won't do
Myth: boron is a proven testosterone or bone booster. Reality: it may nudge some related markers, but the clinical evidence is thin. Myth: high-dose boron is beneficial. Reality: there's no reason to exceed low doses, and excess should be avoided.
Common questions
- Does boron raise testosterone?
- Some small studies show effects on hormone-related markers, but it isn't an established testosterone booster.
- How much is safe?
- Typical supplement doses (around 3 mg) are safe; the upper limit is about 20 mg, so avoid high-dose products.
- Do I need it for bones?
- It's a minor adjunct at best — calcium, vitamin D, and weight-bearing exercise matter far more.
The amounts listed here are what published research has used — not a prescription or a recommended dose for you. Confirm anything you plan to take with your own healthcare provider, especially if you take medications, are pregnant or nursing, or have a health condition.
Related goals
Research on Boron
Recommendations on this page are informed by published research. This is educational information, not medical advice.
- Pizzorno L. Nothing Boring About Boron. Integr Med (Encinitas). 2015;14(4):35-48. View study →Note: A narrative review of mostly small and early studies, not a systematic analysis of trials.