Oxidative stress has been implicated in Alzheimer's disease, and it is potentially driven by the depletion of primary antioxidant, glutathione, as well as elevation of the pro-oxidant, iron. Present study evaluates glutathione level by magnetic resonance spectroscopy, iron deposition by quantitative susceptibility mapping in left hippocampus, as well as the neuropsychological scores of healthy old participants ( = 25), mild cognitive impairment ( = 16) and Alzheimer's disease patients ( = 31). Glutathione was found to be significantly depleted in mild cognitive impaired ( < 0.05) and Alzheimer's disease patients ( < 0.001) as compared with healthy old participants. A significant higher level of iron was observed in left hippocampus region for Alzheimer's disease patients as compared with healthy old ( < 0.05) and mild cognitive impairment ( < 0.05). Multivariate receiver-operating curve analysis for combined glutathione and iron in left hippocampus region provided diagnostic accuracy of 82.1%, with 81.8% sensitivity and 82.4% specificity for diagnosing Alzheimer's disease patients from healthy old participants. We conclude that tandem glutathione and iron provides novel avenue to investigate further research in Alzheimer's disease.