Molybdenum Drug Interactions, Uses, Effectiveness, Safety & More

Molybdenum is an essential trace mineral, which means your body needs only a very small amount of it to stay healthy. It is not an herb or plant — it is a naturally occurring metallic element found in soil, water, and many foods.

You get molybdenum from common foods such as legumes (beans, lentils, and peas), whole grains, nuts, and leafy vegetables. The amount in plant foods depends on how much molybdenum is in the soil where they were grown.

Because most people get plenty of molybdenum from a normal diet, true deficiency is very rare. It is sometimes included in multivitamin and mineral products and sold as a standalone supplement.

Molybdenum acts as a helper, or cofactor, for several enzymes in the body. The most important of these enzymes are involved in breaking down certain substances, including sulfur-containing amino acids and waste products.

One key enzyme that depends on molybdenum is sulfite oxidase, which helps convert sulfite into a less harmful substance called sulfate. Other molybdenum-dependent enzymes help process compounds your body makes when breaking down DNA and proteins.

Most of this knowledge comes from basic biology and studies of rare deficiency disorders, not from research showing that extra molybdenum improves health in well-nourished people.

At the amounts normally found in food, molybdenum is considered safe for most people. Problems are mainly linked to taking high-dose supplements over time, which is rarely necessary.

People with kidney problems should be especially cautious, since the kidneys help remove excess molybdenum from the body. People with gout or high uric acid levels should also be careful, because very high intakes have been linked to increased uric acid in some reports.

For pregnancy and breastfeeding, the small amounts in food and standard prenatal vitamins are generally considered acceptable. However, because safety of higher doses has not been well studied, avoid high-dose molybdenum supplements during pregnancy or breastfeeding unless your doctor specifically recommends them.

Always talk with a pharmacist or doctor before starting a molybdenum supplement, especially if you have a health condition or take other medicines.

When taken in the small amounts found in food, molybdenum rarely causes side effects. Standard supplement doses are also usually well tolerated.

Very high intakes have been associated with problems such as joint pain, gout-like symptoms, and increased uric acid levels. Some reports also describe effects on copper levels in the body, since molybdenum and copper can interact.

If you notice new joint pain, swelling, or other unusual symptoms after starting a molybdenum supplement, stop taking it and contact your healthcare provider.

There is no special "treatment dose" of molybdenum for most people, because deficiency is rare and the body only needs a tiny amount. Health authorities have set recommended daily intakes that are met easily through a normal diet.

If you choose to use a supplement, follow the dose on the product label and do not exceed it. Standalone high-dose molybdenum products are usually unnecessary.

Because individual needs vary and high doses can be harmful, check with a pharmacist or doctor before taking molybdenum, especially if you have kidney problems, gout, or are pregnant or breastfeeding.