Vanadium is a trace mineral found in small amounts in various herbs, spices, and other plant-based foods. Research shows that certain plants, including wild thyme, are efficient accumulators of this element.
Herbs and spices that contain vanadium include:
Parsley
Dill
Black pepper
Wild thyme
Nettle (Urtica dioica)
St. John’s wort (Hypericum perforatum)
Valerian (Valeriana officinalis)
Other plant-based food sources of vanadium include:
Mushrooms
Grains and grain products, such as whole wheat, oats, and buckwheat
Vegetables, including green beans, corn, carrots, cabbage, and spinach
Certain vegetable oils, like sunflower and olive oil
Legumes, including chickpeas, soybeans, and lentils
Important considerations
Trace amounts: While vanadium is present in these plants, it is in very low, trace amounts.
Soil content: The exact concentration can vary based on the mineral content of the soil where the plant was grown.
Insulin-like properties: Vanadium has been studied for its potential insulin-mimetic properties, but high doses can have toxic effects.
Consult a doctor: It is important to consult a healthcare provider before using any supplements containing vanadium.
Vanadium shows potential medicinal value as a treatment for diabetes, cancer, and viral infections, but it is also toxic at high doses. While animal and lab studies are promising, human clinical trials have had mixed results, and significant side effects have been reported. For this reason, vanadium compounds are not currently a standard medical treatment.
Antidiabetic effects
The most studied medicinal application of vanadium is its potential use in treating diabetes by mimicking or enhancing the effects of insulin.
Mechanism of action: Vanadium acts as an insulin mimetic by inhibiting protein tyrosine phosphatase 1B (PTP1B), an enzyme that negatively regulates insulin receptors. This inhibition enhances the insulin signaling pathway, leading to increased glucose uptake by cells.
Animal studies: In rodent models, vanadium compounds have been shown to lower blood glucose levels, improve insulin sensitivity, and promote beta-cell proliferation. Organic vanadium complexes generally demonstrate higher efficacy and lower toxicity than inorganic salts.
Human studies: Small clinical trials in people with type 1 and type 2 diabetes have shown that vanadium supplementation, particularly vanadyl sulfate, can improve glycemic control. However, these studies are often limited by small sample sizes and show high rates of gastrointestinal side effects at the high doses required for a therapeutic effect.
Anticancer activity
Preliminary research suggests that some vanadium compounds may have antineoplastic (anticancer) properties.
Mechanisms: Vanadium compounds can induce apoptosis (programmed cell death) in cancer cells and inhibit enzymes essential for tumor growth, though the specific mechanisms are still under investigation.
Chemosensitization: Research has also explored using vanadium compounds as chemosensitizing agents to enhance the effectiveness of traditional chemotherapy drugs.
Limited evidence: Despite promising in vitro and animal studies, human clinical evidence for vanadium’s use in cancer therapy is scarce and lacks high-quality research.
Antiviral properties
Some vanadium compounds have demonstrated antiviral properties in laboratory studies, including against RNA viruses like SARS-CoV-2.
Mechanism: Researchers have explored vanadium’s potential to target key viral proteins and interfere with viral entry and replication.
Clinical context: There is currently no clinical evidence to support the use of vanadium for treating COVID-19 or any other viral infection in humans.
Other potential uses
Vanadium has also been investigated for a variety of other conditions, with varying levels of evidence. These include:
High cholesterol and atherosclerosis: Some studies suggest that vanadium may have a lipid-lowering effect and potentially help with atherosclerosis.
Inflammatory and autoimmune disorders: Vanadium has demonstrated anti-inflammatory effects in some models and has been studied in connection with conditions like rheumatoid arthritis and systemic lupus erythematosus.
Neurological disorders: Some research links vanadium exposure to neurobehavioral and cognitive changes. However, different studies present contradictory results, showing both potential benefits (such as improved spatial memory in some animal models) and harms (such as neurotoxicity at higher doses).
Toxicity and safety concerns
The medical use of vanadium is complicated by its narrow therapeutic window, meaning the effective dose is close to the toxic dose.
Side effects: Common side effects at therapeutic doses include gastrointestinal issues such as abdominal discomfort, nausea, cramps, and diarrhea.
Organ damage: High and prolonged intake can lead to kidney and liver damage.
Bioavailability: The low and inconsistent absorption of vanadium from dietary supplements can make it difficult to achieve a safe and effective dose.
Regulation: Currently, there is no good scientific evidence to support the routine use of vanadium for any medical condition, and supplements are not regulated for safety or efficacy by agencies like the FDA.