Molybdenum

Ingredients A-Z

Overview

Molybdenum (Mo) is a trace element that plays a vital role in human health, even though we only need it in small amounts. It acts as a helper for important enzymes like xanthine oxidase and sulfite oxidase, which help the body break down purines (excessive purine intake can lead to gout), detoxify sulfites (which can be harmful if they build up), and process certain toxins. Molybdenum is naturally present in foods such as legumes (beans, lentils, peas), whole grains, nuts, seeds, leafy vegetables, dairy products, and organ meats¹. The body absorbs it well, and it is easily excreted when consumed in excess. Deficiency is very rare but can cause problems with detoxification and lead to neurological issues, as seen in individuals with a rare genetic disorder called molybdenum cofactor deficiency¹. On the other hand, consuming too much molybdenum, although uncommon, can interfere with copper absorption and may lead to joint pain or symptoms like gout. Studies have shown that people exposed to high levels of molybdenum through their diet, such as in certain regions with molybdenum-rich soil, may experience such effects².

Key indications

Gout

Molybdenum is a cofactor for xanthine oxidase, an enzyme responsible for breaking down purines (compounds found in foods like red meat, organ meats (liver, kidney), seafood (anchovies, sardines), legumes, and even certain vegetables like spinach and asparagus). Research shows that this enzyme facilitates the conversion of hypoxanthine to xanthine and subsequently xanthine to uric acid, a key step in purine metabolism. Proper regulation of this process helps prevent excessive uric acid build up, which, if uncontrolled, can lead to gout, kidney stones, and other metabolic disorders³,⁴.

Gut Health

Molybdenum plays a crucial role in gut health through its involvement in sulfite oxidase, an enzyme responsible for detoxifying sulfites (potentially harmful byproducts of sulfur metabolism). Sulfites are commonly used as preservatives in processed foods such as dried fruits, wine, and packaged meats, but they are also naturally generated during digestion. If sulfites are not effectively broken down, they can trigger digestive discomfort, including bloating, nausea, abdominal pain, and diarrhea, particularly in individuals with sulfite sensitivity. By acting as a cofactor for sulfite oxidase, molybdenum helps convert these sulfites into sulfates, which are more easily excreted by the body, thereby reducing the risk of adverse reactions and supporting overall digestive health⁵,⁷.

Gout

Gut Health

Adverse effects

Molybdenum is needed in a small amount. However, some of the common adverse effects can happen if an individual taking this element excessively such as inflammation, digestive issues and gout-like-symptoms⁸. These adverse effects can be minimized if daily doses are following the recommendation.

Dosage range

Generally, the Recommended Dietary Allowance (RDA) for adults is 45mcg per day. Pregnant and breastfeeding mothers should consume 50mcg/day. For children (9-13 years old), the recommendation is 34mcg. However, adults aged 19 and older, as well as for pregnant and lactating individuals, the Tolerable Upper Intake Level (UL) for molybdenum is set at 2,000mcg per day⁶,⁹.

Contraindications/cautions

There are no known absolute contraindications for molybdenum, as it is considered safe for use during pregnancy, breastfeeding, and for both elderly individuals and young children. It is generally well-tolerated. However, it may be unsafe when consumed in doses exceeding 2mg per day (Upper Limit).

Adverse effects

Dosage range

Contraindications/cautions

References :

National Institutes of Health, Office of Dietary Supplements. (n.d.). Molybdenum – Health professional fact sheet. U.S. Department of Health and Human Services. https://ods.od.nih.gov/factsheets/Molybdenum-HealthProfessional/
Joun, J. H., Li, L., An, J. N., Jang, J., Oh, Y. K., Lim, C. S., Kim, D. K., & Kim, Y. L. (2024). Antioxidative effects of molybdenum and its association with reduced prevalence of hyperuricemia in the adult population. PLoS ONE, 19(8), e0306025. https://doi.org/10.1371/journal.pone.0306025
WebMD. (n.d.). Molybdenum. WebMD. Retrieved February 6, 2025, from https://www.webmd.com/vitamins/ai/ingredientmono-1249/molybdenum
Johnson, S. (1999). Effect of gradual accumulation of iron, molybdenum and sulfur, slow depletion of zinc and copper, ethanol or fructose ingestion and phlebotomy in gout. Medical Hypotheses, 53(5), 407–412. https://doi.org/10.1054/mehy.1999.0925
Battelli, M. G., Polito, L., Bortolotti, M., & Bolognesi, A. (2016). Xanthine oxidoreductase in drug metabolism: Beyond a role as a detoxifying enzyme. Current Medicinal Chemistry, 23(35), 4027–4036. https://doi.org/10.2174/0929867323666160725091915
Barceloux, D. G., & Barceloux, D. (1999). Molybdenum. Journal of Toxicology: Clinical Toxicology, 37(2), 231–237. https://doi.org/10.1081/CLT-100102422
Office of Dietary Supplements. (2021, August 19). Molybdenum. National Institutes of Health, U.S. Department of Health and Human Services. Retrieved February 6, 2025, from https://ods.od.nih.gov/factsheets/Molybdenum-Consumer/
Wang, J., Yang, Z., Celi, P., Yan, L., Ding, X., Bai, S., Zeng, Q., Mao, X., Feng, B., Xu, S., & Zhang, K. (2019). Alteration of the Antioxidant Capacity and Gut Microbiota under High Levels of Molybdenum and Green Tea Polyphenols in Laying Hens. Antioxidants, 8(10), 503. https://doi.org/10.3390/antiox8100503
Self, W. T. (2002). Regulation of purine hydroxylase and xanthine dehydrogenase from Clostridium purinolyticum in response to purines, selenium, and molybdenum. Journal of Bacteriology, 184(7), 2039–2044. https://doi.org/10.1128/jb.184.7.2039-2044.2002
Institute of Medicine (US) Panel on Micronutrients. (2001). Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc. Washington (DC): National Academies Press (US). (Source: https://nutritionsource.hsph.harvard.edu/molybdenum/)

References :

National Institutes of Health, Office of Dietary Supplements. (n.d.). Molybdenum – Health professional fact sheet. U.S. Department of Health and Human Services. https://ods.od.nih.gov/factsheets/Molybdenum-HealthProfessional/
Joun, J. H., Li, L., An, J. N., Jang, J., Oh, Y. K., Lim, C. S., Kim, D. K., & Kim, Y. L. (2024). Antioxidative effects of molybdenum and its association with reduced prevalence of hyperuricemia in the adult population. PLoS ONE, 19(8), e0306025. https://doi.org/10.1371/journal.pone.0306025
WebMD. (n.d.). Molybdenum. WebMD. Retrieved February 6, 2025, from https://www.webmd.com/vitamins/ai/ingredientmono-1249/molybdenum
Johnson, S. (1999). Effect of gradual accumulation of iron, molybdenum and sulfur, slow depletion of zinc and copper, ethanol or fructose ingestion and phlebotomy in gout. Medical Hypotheses, 53(5), 407–412. https://doi.org/10.1054/mehy.1999.0925
Battelli, M. G., Polito, L., Bortolotti, M., & Bolognesi, A. (2016). Xanthine oxidoreductase in drug metabolism: Beyond a role as a detoxifying enzyme. Current Medicinal Chemistry, 23(35), 4027–4036. https://doi.org/10.2174/0929867323666160725091915
Barceloux, D. G., & Barceloux, D. (1999). Molybdenum. Journal of Toxicology: Clinical Toxicology, 37(2), 231–237. https://doi.org/10.1081/CLT-100102422
Office of Dietary Supplements. (2021, August 19). Molybdenum. National Institutes of Health, U.S. Department of Health and Human Services. Retrieved February 6, 2025, from https://ods.od.nih.gov/factsheets/Molybdenum-Consumer/
Wang, J., Yang, Z., Celi, P., Yan, L., Ding, X., Bai, S., Zeng, Q., Mao, X., Feng, B., Xu, S., & Zhang, K. (2019). Alteration of the Antioxidant Capacity and Gut Microbiota under High Levels of Molybdenum and Green Tea Polyphenols in Laying Hens. Antioxidants, 8(10), 503. https://doi.org/10.3390/antiox8100503
Self, W. T. (2002). Regulation of purine hydroxylase and xanthine dehydrogenase from Clostridium purinolyticum in response to purines, selenium, and molybdenum. Journal of Bacteriology, 184(7), 2039–2044. https://doi.org/10.1128/jb.184.7.2039-2044.2002
Institute of Medicine (US) Panel on Micronutrients. (2001). Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc. Washington (DC): National Academies Press (US). (Source: https://nutritionsource.hsph.harvard.edu/molybdenum/)

The material is prepared for informational purposes only and should not be construed as a piece of personal medical advice. Owing to each person’s varying health needs, a physician should be consulted before acting on any information provided in this material. Although every effort is made to ensure that this material is accurate, it is compiled for internal use only and should not be considered definitive. Neither VitaHealth nor its employees, or information providers shall be responsible or liable for any errors, inaccuracies, or other defects in the information contained in this publication.