Cell · Minerals

The mineral they outlawed.

Boron holds calcium in your bones and moves estradiol and testosterone. Americans get about 1 mg a day, and no standard panel measures it.

$34.95 · 2 fl oz · about 60 servings · about 58 cents a serving

Liquid Boron, 2 fl oz dropper bottle, 5 mg boron per serving from calcium fructoborate
Read the whole story

58¢ a serving

Why this form

Calcium fructoborate, in a liquid. The form found in fruit.

Liquid Boron is 5 mg of boron per 1 mL serving, from calcium fructoborate, in glycerin, distilled water, extra virgin olive oil and extra virgin avocado oil with Ormus Supercharged Minerals. About 60 servings in a 2 fl oz bottle, about 58 cents a serving.

Calcium fructoborate belongs to the sugar-borate complexes that occur naturally in plants,23 the organic form of boron that fruit and vegetables carry.24 In middle-aged people with knee osteoarthritis, 2 weeks of calcium fructoborate improved inflammatory markers against placebo.25

Not borax. The salt left the food; this is the element. Why

Liquid Boron bottle beside its Supplement Facts panel: 5 mg boron from calcium fructoborate per 1 mL

Boron needs magnesium

The pair.

Boron's bone effects run through its interactions with magnesium, calcium and vitamin D, not alone.19 In postmenopausal women, boron changed calcium and magnesium retention differently depending on how much magnesium the woman was already eating.20 Boron and magnesium are both essential for normal bone and joint development.22 A 2004 paper proposes that boron raises 25-hydroxyvitamin D by slowing its breakdown.21 Why

Magnesium Glycinate is 50 mg of magnesium a capsule, as 500 mg of fully chelated magnesium glycinate, 120 capsules.

The companions

Vitamin D. Most North American adults fall short on vitamin D, and on boron, magnesium, calcium and vitamin K with it.12 Organic Vitamin D3 5000 IU is cholecalciferol from lichen, 125 mcg per 2 mL.

Calcium. In 12 postmenopausal women, 3 mg of boron a day cut the calcium leaving in the urine.1 Calcium & Magnesium puts the two minerals in one capsule.

Boron's second ring includes vitamin K2, carried on the cardiac stack.

Get it here

The boron, its pair, and two companions.

Liquid Boron, 2 fl oz dropper bottle

The mineral · Global Healing

Liquid Boron

$34.95 · 2 fl oz · about 60 servings

  • Serving: 1 mL · about 60 servings
  • Boron 5 mg, from calcium fructoborate
  • Glycerin, distilled water, extra virgin olive oil, extra virgin avocado oil, Ormus Supercharged Minerals
  • Shake well. 1 mL daily.

Calcium fructoborate in a liquid base. About 58 cents a serving.

Earth Harmony Magnesium Glycinate, fully chelated, 120 capsules

The pair · Earth Harmony

Magnesium Glycinate

$24.95 · 120 capsules

  • Serving: 1 capsule · 120 servings
  • Magnesium 50 mg (as 500 mg magnesium glycinate, fully chelated)
  • Other ingredients: vegetable capsule (cellulose), organic MCT powder, diatomaceous earth, trace minerals

The pair.

Global Healing Organic Vitamin D3 5000 IU, 2 fl oz dropper bottle

Companion · Global Healing

Organic Vitamin D3 5000 IU

$24.95 · 2 fl oz · about 30 servings

  • Serving: 2 mL · about 30 servings
  • Vitamin D3 125 mcg (5,000 IU) (625% DV), as D3 from lichen
  • Other ingredients: glycerin, biophotonic structured water, organic guar gum, Ormus Supercharged Minerals

Cholecalciferol from lichen.

Global Healing Calcium & Magnesium, 120 capsules

Companion · Global Healing

Calcium & Magnesium

$29.95 · 120 capsules

  • Magnesium together with calcium
  • Full facts on the product page

Calcium and magnesium in one capsule.

Global Healing and Earth Harmony links track the referral; there is no code to paste. We earn a referral commission at no cost to you.

Know your numbers in The Lab Atlas (join the waitlist), and read the whole story in the boron deep dive.

What too little costs you

Low boron, and the calcium leaves.

  • Bone. In 12 postmenopausal women, 3 mg of boron a day cut the calcium and magnesium leaving in the urine and raised estradiol and testosterone.1 Take boron out of the diet and put it back, and the same pattern repeats: less calcium lost, more estrogen and testosterone in the blood.2 In 66 women with osteoporosis, boron intake tracked bone density.3 In 334 women with thinning bone, 12 months of a calcium, vitamin D, mineral and boron tablet brought small density gains while untreated controls lost 1.9 to 2.9 percent.4 Why
  • Brain. Take boron out of the diet and brain electrical activity drops; attention, short-term memory, motor speed and dexterity slow, in animals and in people.5 Why
  • Joints. In 20 people with osteoarthritis on 6 mg of boron a day, half improved against 1 in 10 on placebo.6 In 60 adults with knee discomfort, 14 days of calcium fructoborate meant less discomfort than placebo,7 and the same complex lowered C-reactive protein in people.8 Towns with low boron in the drinking water carry more rheumatoid arthritis and polyarthropathy; Moldova mapped it.9 Why
  • Hormones. In healthy men, 1 week of boron raised free testosterone and lowered several inflammatory cytokines.10 Why

No one is getting enough

About 1 mg a day. Nobody measures it.

US men take in about 1.1 mg of boron a day. Men in Germany, Mexico and Kenya take in 1.7 to 2.1 mg.11 Most North American adults fall short on boron, and on magnesium, vitamin D, calcium, vitamin K and silicon with it.12 Of 89 Germans measured, vegans had the highest boron intake: it comes from plants.13 Why

Not one standard blood panel includes boron. Dietary boron is absorbed and cleared by the kidneys, and intake tracks the urine closely, so the test exists. Nobody orders it.14 Why

The history is 2 sentences. Borax preserved American meat and butter from the 1870s until the 1902 Poison Squad (Science History Institute) and the 1906 Pure Food and Drug Act, and today the FDA lists it for indirect food contact only (FDA inventory). In 2009 Europe classified boric acid and borax toxic to reproduction, category 1B (Regulation 790/2009), and from 2010 they could not be supplied to the public (REACH Annex XVII). Borax is a salt. Boron is the element inside it, and in the gut, boron complexes feed the bacteria that hold the colon's barrier together.15 Why

Higher intakes are well tolerated

Boric acid plant workers in Turkey taking in a mean 14.45 mg of boron a day had normal sperm concentration, motility and morphology, and normal FSH, LH and testosterone.16 Healthy men on 10 mg a day for 4 weeks passed 84 percent of it in the urine, with higher estradiol and plasma lipids unchanged.17 The human and animal data put an acceptable safe population mean intake for adults at 1 to 13 mg a day.18

1 mL a day. 58 cents.

They pulled it out of the food, stamped it a poison, and sell you the drug for the bones it was holding up.

Borax left American food after the 1902 Poison Squad and the 1906 food law, and Europe classified it toxic to reproduction in 2009. Borax is a salt; boron is the element inside it. In 12 postmenopausal women, 3 mg of boron a day cut the calcium and magnesium leaving in the urine and raised estradiol and testosterone. US men take in about 1.1 mg a day, and no standard blood panel measures it. Boron's bone effects run through magnesium, calcium and vitamin D, so magnesium is its pair.

Boron: the common questions

Why is boron called the mineral they outlawed?

Because the salt that carried it was taken out of the food. Borax preserved American meat and butter until the 1902 Poison Squad and the 1906 Pure Food and Drug Act; the FDA lists it for indirect food contact only. In 2009 Europe classified boric acid and borax toxic to reproduction, category 1B, and from 2010 they could not be supplied to the public.

Is borax the same as boron?

No. Borax is sodium tetraborate, a salt. Boron is the element inside it, the one the studies measure. The form on this page is calcium fructoborate, a sugar-borate complex of the kind fruit and vegetables carry. Nobody should swallow household borax.

What does too little boron do?

In postmenopausal women, taking boron out of the diet raised the calcium and magnesium leaving in the urine, and 3 mg a day put it back while estradiol and testosterone rose. Boron deprivation lowered brain electrical activity and slowed attention and short-term memory.

How much boron do people get?

US men take in about 1.1 mg a day; men in Germany, Mexico and Kenya 1.7 to 2.1 mg. Most North American adults fall short on boron, magnesium, vitamin D, calcium, vitamin K and silicon together. Vegans had the highest intake of 89 Germans measured, because it comes from plants.

Are higher boron intakes safe?

Boric acid plant workers taking in a mean 14.45 mg of boron a day had normal sperm and normal FSH, LH and testosterone. Healthy men on 10 mg a day for 4 weeks passed 84 percent of it in the urine. An analysis of the human and animal data put an acceptable safe population mean intake for adults at 1 to 13 mg a day.

Will a blood test show if I am low in boron?

No routine panel includes boron. It is absorbed and cleared by the kidneys and intake tracks the urine closely, so the measurement exists and nobody orders it. The Lab Atlas waitlist is where that changes.

Why take magnesium with boron?

Because boron's bone effects run through its interactions with magnesium, calcium and vitamin D rather than alone, and boron changed calcium and magnesium retention differently depending on how much magnesium the woman was already eating.

What is in Liquid Boron?

One 1 mL serving gives 5 mg of boron from calcium fructoborate, in glycerin, distilled water, extra virgin olive oil and extra virgin avocado oil with Ormus Supercharged Minerals. About 60 servings per 2 fl oz bottle, $34.95. Shake well, 1 mL daily. The product page says it is not for children and not for use in pregnancy or while nursing. Label read 2026-11-10.

Is there a discount code?

No. The Global Healing and Earth Harmony links carry the referral, so the price is the maker's and nothing is pasted at checkout. We earn a referral commission at no cost to you. Education only, not medical advice.

Every study on this page

Read them yourself.

All 25, grouped and numbered. Every marker above jumps to its entry here. Every study on both sides is in the long read.

What too little costs you10 studies · 1–10
  1. 1Effect of dietary boron on mineral, estrogen, and testosterone metabolism in postmenopausal women (1987)PubMed
  2. 2Biochemical and physiologic consequences of boron deprivation in humans. (1994)PubMed
  3. 3A pilot study investigating the influence of dietary boron levels on osteoporosis in postmenopausal women (2024)PubMed
  4. 4[Vitrum osteomag in prevention of osteoporosis in postmenopausal women: results of the comparative open multicenter trial] (2004)PubMed
  5. 5The importance of boron nutrition for brain and psychological function (1998)PubMed
  6. 6Essentiality of boron for healthy bones and joints. (1994)PubMed
  7. 7Short-term efficacy of calcium fructoborate on subjects with knee discomfort: a comparative, double-blind, placebo-controlled clinical study (2014)PubMed
  8. 8Calcium fructoborate helps control inflammation associated with diminished bone health (2013)PubMed
  9. 9The role of boron in prevention of osteoarticular diseases and its distribution in the Republic of Moldova (2021)Source
  10. 10Comparative effects of daily and weekly boron supplementation on plasma steroid hormones and proinflammatory cytokines (2011)PubMed
No one is getting enough, and nobody measures it5 studies · 11–15
  1. 11Multicountry estimation of dietary boron intake (1998)DOI
  2. 12Essential Nutrients for Bone Health and a Review of their Availability in the Average North American Diet (2012)PubMed
  3. 13Boron Intake and 24-hour Urinary Excretion in Long-term Omnivores, Vegetarians and Vegans: a Cross-sectional Study (2026)DOI
  4. 14Boron in Diet and Medicine: Mechanisms of Delivery and Detection (2025)PubMed
  5. 15Boron Bioavailability Revisited: From Plasma-Accessible Species to Microbiota-Accessible Complexes-Implications for Nutritional Essentiality (2025)PubMed
Higher intakes, well tolerated3 studies · 16–18
  1. 16Reproductive toxicity parameters and biological monitoring in occupationally and environmentally boron-exposed persons in Bandirma, Turkey (2011)PubMed
  2. 17The effect of boron supplementation on its urinary excretion and selected cardiovascular risk factors in healthy male subjects (1997)PubMed
  3. 18The justification for providing dietary guidance for the nutritional intake of boron (1998)DOI
Boron works with magnesium, calcium and vitamin D4 studies · 19–22
  1. 19The relationship between boron and magnesium status and bone mineral density in the human: a review. (1993)PubMed
  2. 20Metabolic responses of postmenopausal women to supplemental dietary boron and aluminum during usual and low magnesium intake (1997)PubMed
  3. 21Up-regulatory impact of boron on vitamin D function -- does it reflect inhibition of 24-hydroxylase? (2004)PubMed
  4. 22The Impact of Trace Elements on Osteoarthritis (2021)PubMed
The form: calcium fructoborate3 studies · 23–25
  1. 23The Fructoborates: Part of a Family of Naturally Occurring Sugar–Borate Complexes—Biochemistry, Physiology, and Impact on Human Health: a Review (2018)DOI
  2. 24The role of boron in the functionig of the osteoarticular system ; Rolul borului în funcționarea sistemului osteoarticular (2021)Source
  3. 25A double-blind, placebo-controlled pilot study to evaluate the effect of calcium fructoborate on systemic inflammation and dyslipidemia markers for middle-aged people with primary osteoarthritis (2011)PubMed

Education only, not medical advice. Nothing here diagnoses, treats, cures or prevents any disease. Study citations are nutrient science, not claims about any product.