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Boron

Supplement mineral bone & jointmen's health
Aka: boron citrate, calcium fructoborate
Brands seen in Singapore: Life Extension, NOW Foods, Swanson Vitamins, Nutricost, Vitamatic
Not medical advice. Check with your doctor or pharmacist before you start, stop or change the timing of anything you take.
How to use
What it’s for
Osteoarthritis symptoms — small studies, not confirmed
Pros & cons
Pros
  • ODS: no known clinically relevant drug interactions
  • Small studies hint at fewer osteoarthritis symptoms
  • Adult upper intake level is set at 20 mg a day
Cons
  • No RDA or ai — the fnb judged the data insufficient
  • Bone benefit in humans is not yet demonstrated
  • SG caps supplements at 6.4 mg/day; 10 mg sold on iherb
Sources
  1. NIH ODS — Boron Fact Sheet for Health Professionals (updated 9 June 2022), Recommended Intakes · read 2026-08-27
    what it says
    “The FNB found the existing data insufficient to derive an RDA, AI, or EAR for boron.”
  2. NIH ODS — Boron Fact Sheet, Daily Value · read 2026-08-27
    what it says
    “Because the FNB has not established an RDA or AI for boron, boron does not have a DV.”
  3. NIH ODS — Boron Fact Sheet, Table: Tolerable Upper Intake Levels (ULs) for Boron, adult row · read 2026-08-27
    what it says
    “Tolerable Upper Intake Levels (ULs) for Boron … 19+ years: 20 mg”
  4. NIH ODS — Boron Fact Sheet, boron and osteoarthritis · read 2026-08-27
    what it says
    “Observational evidence combined with the findings from a few small clinical studies in humans suggests that boron might be helpful for reducing the symptoms of osteoarthritis, possibly by inhibiting inflammation.”
  5. NIH ODS — Boron Fact Sheet, boron and bone health · read 2026-08-27
    what it says
    “Additional research is needed to determine whether boron supplementation affects bone health in humans.”
  6. NIH ODS — Boron Fact Sheet, Interactions with Medications · read 2026-08-27
    what it says
    “Boron is not known to have any clinically relevant interactions with medications.”
  7. NIH ODS — Boron Fact Sheet, forms in supplements and symptoms of boric acid / borax ingestion · read 2026-08-27
    what it says
    “In dietary supplements, boron is present in many different forms, including sodium borate, sodium tetraborate, boron amino acid chelate, boron ascorbate, boron aspartate, boron citrate, boron gluconate, boron glycinate, boron picolinate, and calcium fructoborate.”
  8. HSA — Guidelines on Prohibited and Restricted Ingredients in HS and TM, GL-CHPB-1-012 Rev 001 (Oct 2025), Annex A row 14 · read 2026-08-27
    what it says
    “14. Boron — Restricted use in HS and TM — Maximum Daily Dose: When for oral use by general adult population, the maximum recommended daily dose should not provide more than 6.4mg”
  9. iHerb Singapore — Boron category page (under Minerals), default (best-selling) order, SGD pricing · read 2026-08-27
    what it says
    “Life Extension, Boron, 3 mg … NOW Foods, Boron, 3 mg, 250 Veg Capsules … Swanson Vitamins, Albion® Boron, 6 mg … Nutricost, Boron, 10 mg, 240 Capsules … Vitamatic, Boron Glycinate, 10 mg”
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Updated 2026-08-29. Every line above traces to a numbered source. Kozen-X is not a medical device and does not give medical advice. It lists what published sources have written down — nothing more. A pair not listed is unrecorded, not cleared. Before you start, stop or re-time anything, talk to your doctor or pharmacist.