Vanadium
Published on December 20, 2025 by Guy
Vanadium is a trace mineral found in small amounts in certain foods that has gained attention for its potential insulin-mimicking properties. While the body requires only minute amounts, vanadium supplements are primarily used by people seeking support for blood sugar management. Research shows it may help improve insulin sensitivity and glucose uptake, though human studies remain limited.
Effects and Benefits
Core Identification
Common Names:
- Vanadium
- Vanadyl sulfate (supplement form)
Latin Name: N/A (mineral element)
Category: Mineral
Uses
Traditional Uses
- Not traditionally used as a medicinal supplement
- Food sources historically include mushrooms, shellfish, black pepper, parsley, and dill
Modern Uses
- Blood sugar support - May help improve insulin sensitivity and glucose metabolism | Research quality: Preliminary
- Key findings: Studies show vanadium mimics insulin action and may improve glucose uptake in cells
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Source citations: Wilen - Healing Remedies; Colbert - Reversing Diabetes
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Insulin mimetic action - May enhance the body's response to insulin | Research quality: Preliminary
- Key findings: Vanadyl sulfate has been shown to improve cells' sensitivity to insulin
- Source citations: Balch - Prescription for Herbal Healing
Active Compounds
Primary Active Ingredients:
- Vanadyl sulfate - The most common supplemental form; mimics insulin signaling
- Sodium metavanadate - Another supplemental form used in research
Dosage Information
Standard Dosage:
- Form: Capsule (typically as vanadyl sulfate)
- Amount: 10-30 mcg per day (amount often found in multivitamins)
- Note: No established RDA; typical dietary intake is 6-18 mcg/day
Therapeutic Dosage:
- Form: Capsule
- Amount: 50-100 mg vanadyl sulfate per day (much higher than dietary levels)
- Purpose: Blood sugar support
- Duration: Under medical supervision only
- Note: Some practitioners report using 100-150 mg/day, though this is controversial
Maximum Safe Dosage:
- Tolerable Upper Intake Level: 1.8 mg/day (1,800 mcg) established by Institute of Medicine
- Warning: Therapeutic doses far exceed this level; long-term safety unknown
Bioavailability Notes:
- Poorly absorbed (approximately 5% or less)
- Vanadyl sulfate form most commonly used in supplements
- May be better absorbed with food
How to Take It
Timing:
- Take with meals to reduce GI upset
- Divide doses throughout the day if taking higher amounts
Synergies - What It Works Well With
Complementary Supplements:
1. Chromium - Both support glucose metabolism | Combined effect may enhance insulin sensitivity
2. Magnesium - Supports overall glucose balance | Both minerals involved in carbohydrate metabolism
Avoidance - What NOT to Combine With
Supplement Interactions:
1. High-dose iron - May compete for absorption | Take at different times
Drug Interactions:
1. Insulin - Vanadium may enhance insulin effects, risking hypoglycemia | Monitor blood sugar closely; may need dose adjustment | Severity: Moderate
2. Oral diabetes medications - Additive blood sugar-lowering effects | Risk of hypoglycemia | Severity: Moderate
3. Blood thinners (anticoagulants/antiplatelets) - May enhance bleeding risk | Use with caution | Severity: Moderate
Food Interactions:
- None well-documented
- Taking with food reduces GI side effects
Safety Information
Contraindications:
- Pregnancy and breastfeeding (insufficient safety data)
- Kidney disease (vanadium is excreted through kidneys)
- Bipolar disorder (may affect manic episodes in some reports)
- Children (not enough research)
Side Effects:
- Common: GI upset, nausea, diarrhea, stomach cramping (especially at higher doses)
- Less common: Green tongue discoloration
- Rare: Potential kidney toxicity at very high doses
Long-Term Use:
- Long-term safety at therapeutic doses not well established
- Most studies are short-term (weeks to months)
- Regular monitoring recommended if using for extended periods
Special Precautions:
- Discontinue 2 weeks before surgery
- People with diabetes should work closely with healthcare provider
- Start with lower doses to assess tolerance
Primary Uses At-a-Glance
Primary: Blood sugar support, insulin sensitivity
Secondary: General glucose metabolism support
Sources
Local Library:
- Wilen, Lydia - Healing Remedies
- Colbert, Don - Reversing Diabetes
- Balch, Phyllis - Prescription for Herbal Healing
General Knowledge:
- Institute of Medicine dietary reference intakes
- Clinical studies on vanadyl sulfate and diabetes