<prompt> Impaired Glucose intolerance is caused by deficiency ofChromiumSeleniumCopperCobalt  <response>: Ans. a ChromiumRef: Harrisons, 19th ed. pg. 96e-9 A deficiency of chromium can cause impaired glucose tolerance. Physiologically, chromium potentiates the action of insulin in patients with impaired glucose tolerance, presumably by increasing insulin receptor-mediated signaling. Rich food sources of chromium include yeast, meat, and grain products. Note: Deficiency of Selenium: Can cause cardiomyopathy Keshan disease Selenium toxicity: Can cause selenosis Kashinbeck disease 