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Ingredient:

Vanadium (as vanadyl glycinate)

Vanadium is a trace element found in foods such as mushrooms, shellfish, black pepper, parsley, grains and grain products. The absorption of ingested vanadium is less than 5 percent 1.
  A biological role of vanadium in humans is unclear. Therefore, neither a Reference Daily Intake (RDI) nor a Daily Reference Value (DRV) has been set by the U.S. Food and Drug Administration (FDA).
  Vanadyl glycinate, or vanadium glycinate, is a form of chelated vanadium, in which a vanadium ion is bound to the amino acid glycine. It is used as a source of the trace mineral vanadium in dietary supplements.

This ingredient can be found in the following products in United States:

References

  1. Institute of Medicine. Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc. Washington, D.C.: National Academy Press, 2002.