Boron
Also known as: Boron glycinate, Calcium fructoborate
Boron is a trace element found in foods like fruits, nuts, and legumes. It appears in discussions of bone wellness and mineral metabolism, but human evidence for supplementation is limited and no established requirement exists. Because it is a trace mineral, staying well under commonly cited upper limits matters more than taking more.
Snapshot
Evidence level is outcome-specific; a supplement can have stronger evidence for one use and limited evidence for another.
What this page can tell you: Commonly discussed timing, food notes, caution categories, and an honest note on how much source review this entry still needs.
What it cannot: Whether this is appropriate for you personally, or that it treats, prevents, or cures any condition. Informational only — discuss with a clinician or pharmacist.
🕒 Timing
When: With a meal
Food: With food
Commonly taken with food; timing is otherwise flexible.
💊 Common use range
1–3 mg
A commonly cited adult upper limit is around 20 mg/day from all sources — verify this figure, and remember multivitamins may already include boron.
Ranges are informational, not a recommended dose. Talk to a professional about what is right for you.
⚠️ Commonly noted interactions (supplements)
None listed.
Often about absorption or timing rather than danger — separating doses is common. This list is not exhaustive.
🧭 Baseline caution
General caution for ordinary, common use — before accounting for your specific dose, medications, health history, or procedures.
No general caution factors flagged for ordinary use. See context alerts below for situations that may still apply to you.
Caution level is an informational summary of commonly discussed caution categories and doses — not a safety rating, approval, or medical advice. Low caution does not mean safe for you.
🔎 Context alerts to review
Context alerts may matter depending on your dose, medications, health history, or procedure plans — they do not mean the supplement is generally risky at ordinary use.
Dose / upper limit
- Has a commonly discussed upper limit — watch total daily intake
Spacing & absorption
- Mineral spacing — minerals compete for absorption
🩺 Medication caution categories
None flagged here, but always review your full routine with a professional.
🏥 Surgery & procedure caution
Not a well-established surgical concern; share your full supplement list with your care team.
If you have a procedure scheduled, bring your full supplement list to your surgical and anesthesia team. Do not stop prescribed medication unless your clinician tells you to. Do not start or stop supplements based only on this app.
✅ Quality checklist
- Prefer products with third-party testing or a certificate of analysis (COA).
- Check the label for the exact form and the elemental or active amount per serving.
🧩 Commonly paired with
🔁 Alternatives
None listed.
🗣️ Questions for a professional
- Is there any evidence-based reason for me to supplement boron beyond a normal diet?
🔬 Evidence snapshot
NIH ODS: boron is not classified as an essential nutrient — no biological function is firmly established and there is no RDA. Human evidence for bone or other outcomes is limited and inconclusive. The adult Tolerable Upper Intake Level is 20 mg/day.
🧪 Forms & quality
Needs evidence review — no source-reviewed information yet. We only show dose and monitoring details after they have been checked against reputable sources.
See the supplement glossary for what form names like "L-", chelated, or standardized extract mean.
📏 Dose & monitoring
Needs evidence review — no source-reviewed information yet. We only show dose and monitoring details after they have been checked against reputable sources.
Evidence vs. burden: Not yet reviewed
😐 Commonly reported side effects
- Uncommon at low doses; high intakes are associated with digestive upset and other effects
Non-exhaustive and individual.
🔄 Cycling & breaks
No established cycling pattern.
📅 Daily use notes
Check whether your multivitamin already contains boron before adding a standalone product.
📋 Source review status
Source-reviewed — last reviewed 2026-07-11
Reconciled 2026-07-11 against the NIH ODS Boron fact sheet: not an essential nutrient (no RDA), limited/inconclusive human evidence, adult UL 20 mg/day, typical supplement amounts 0.15-6 mg.
📚 References
- NIH ODS — Boron (Health Professional Fact Sheet)NIH ODS — Verified: not an essential nutrient, no RDA/AI/EAR; adult UL 20 mg/day; typical supplement amounts 0.15-6 mg; high-dose GI toxicity cautions.
Verified against the source shown. See the research-status page for how review works.
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