Boron is a trace mineral found in foods such as fruits, vegetables, and nuts. It is studied for roles in bone metabolism, hormone regulation, and inflammation.

What are the main benefits of boron?

Boron may support bone health by influencing calcium, magnesium, and vitamin D metabolism. It may also affect sex hormone activity and has potential anti-inflammatory effects.

How much boron should I take?

Common supplemental amounts are in the low milligram range; a typical range is about 3–10 mg per day. Individual needs vary, so consider medical guidance if you have health conditions or take medications.

Who should be cautious with boron supplements?

People who are pregnant or breastfeeding, have kidney problems, or are taking hormone-related therapies should use caution. Children should only use boron supplements under clinician supervision.

What foods contain boron?

Boron is present in many plant foods, especially fruits, vegetables, nuts, and legumes. Dietary intake varies with food choices and soil content.

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Boron

Moderate study situation·7/10

A higher score indicates better study conditions, but not necessarily effectiveness.

Boron is a trace mineral that supports bone health, hormone regulation, and may reduce inflammation, but must be used with caution in certain populations.

Testosterone Booster Menopause Support Anti-inflammatory Bone Health Hormone Balance

dose range

3–10 mg

Once daily with meal; up to 2 divided doses possible for higher intakes

Consumption

Take with or after food to enhance absorption and reduce gastrointestinal discomfort.

Not fat-soluble.

Best time

Morning or with first main meal is common practice.

Description

Boron, found in foods like fruits, vegetables, and nuts, is gaining attention for its supportive roles in bone health, hormone balance, and inflammation regulation, though it is not officially classified as an essential nutrient for humans.

benefits

Main effects with level of evidence

Moderate

Note on evidence

There is moderate evidence for boron's role in bone health and hormone modulation, and limited but promising evidence for anti-inflammatory effects.

Supports Bone Health

Moderate

Boron supports bone maintenance by influencing calcium, magnesium, and vitamin D metabolism, and may increase bone mineral density, particularly in postmenopausal women.

Particularly relevant for: Postmenopausal women · Older adults

1 · NIH Office of Dietary Supplements 2 · Journal of Trace Elements in Medicine and Biology

May Improve Hormone Balance

Moderate

Boron may modulate sex hormones, such as increasing free testosterone and estrogen, potentially benefiting muscle mass and menopausal symptoms.

Particularly relevant for: Men · Postmenopausal women

1 · NIH Office of Dietary Supplements 6 · Examine.com: Boron

Potential Anti-Inflammatory Effects

Limited

Supplemental boron may reduce markers of inflammation and alleviate osteoarthritis symptoms, although further research is needed.

Particularly relevant for: Adults with osteoarthritis

3 · Integrative Medicine: A Clinician's Journal 6 · Examine.com: Boron

Safety & Information

Important safety information & known risks

For educational purposes only • not medical advice

Boron is generally considered safe within recommended intakes, but toxicity may occur if intake exceeds upper limits, especially in sensitive populations.

warning notices

Gastrointestinal side effects (nausea, vomiting, diarrhea) have been reported at high doses.
Can accumulate in people with impaired kidney function.
Potential reproductive toxicity at high doses, particularly relevant for pregnant or breastfeeding women.
Avoid use if pregnant or breastfeeding due to potential reproductive toxicity.
Do not use if you have kidney disease, as boron is excreted through the kidneys and may accumulate to harmful levels.
High boron intake (over 20 mg/day) may cause gastrointestinal side effects including nausea, vomiting, or diarrhea.
Use cautiously if taking hormone therapies, as boron may alter hormone levels.

Known interactions with medications

Hormone therapies (HRT)

Contraindications / special precautions

Pregnancy
Breastfeeding
Kidney disease

interactions

Important interactions between active ingredient ↔ supplement / medication / food

Boron influences the metabolism of several nutrients and may interact with hormone therapies and certain medications.

Boron may enhance the effectiveness of vitamin D.

nutrient · Vitamin D

PairModerateTake together

Why

Boron can upregulate enzymes involved in vitamin D metabolism, potentially improving bone health outcomes.

recommendation

May consider combined use in bone health protocols.

1 · NIH Office of Dietary Supplements

Boron may interact with hormone replacement therapy (HRT).

drug · Hormone therapies

CautionModerate

Why

Boron can modulate estrogen and testosterone levels, possibly influencing the effects or risks of hormone therapies.

recommendation

Consult a healthcare provider before combining boron supplementation with HRT or similar drugs.

1 · NIH Office of Dietary Supplements 6 · Examine.com: Boron

mechanisms of action

Brief explanations of how it works

Influence on Bone and Mineral Metabolism

Boron affects enzymes involved in mineral metabolism, supporting utilization of calcium, magnesium, and vitamin D for bone health.

1 · NIH Office of Dietary Supplements 2 · Journal of Trace Elements in Medicine and Biology

Hormonal Modulation

Boron regulates levels of estrogen and testosterone by influencing steroid hormone pathways.

1 · NIH Office of Dietary Supplements 6 · Examine.com: Boron

Reduction of Inflammatory Markers

Boron may inhibit inflammatory cytokines and enzymes, reducing symptoms in some inflammatory conditions.

3 · Integrative Medicine: A Clinician's Journal 6 · Examine.com: Boron

Sources & References

Primary literature and reviews on which these statements are based

6 sources

NIH Office of Dietary Supplements

Comprehensive overview of boron functions, safety, and dietary sources.

Journal of Trace Elements in Medicine and Biology

Study on boron and bone mineral density.

Integrative Medicine: A Clinician's Journal

Clinical evidence for boron's anti-inflammatory effects in osteoarthritis.

WebMD: Boron Overview

Consumer-focused safety and use profile.

EFSA Panel on Dietetic Products, Nutrition and Allergies

Scientific Opinion on tolerable upper intake levels for vitamins and minerals.

Examine.com: Boron

Evidence summaries for boron's effects and interactions.

Laatst bijgewerkt: 13 februari 2026

This information is for educational purposes only and does not replace medical advice.