Radiation-oxidative exposure treatment compositions comprise a mixture of micronutrient multivitamin and trace elements, a mixture of antioxidants and chemopreventative agents, and optionally a mixture of fatty acids. Micronutrient multivitamin and trace elements mixtures include vitamins A, Bp, B1, B2, B3, B5, B6, B7, B9, B12, C, D, E and K inositol calcium, iodine, magnesium, zinc, selenium, copper, manganese, chromium, molybdenum, potassium, boron and vanadium. Mixtures of non-essential antioxidants and chemopreventative agents include bioflavins, alpha lipoic acid, N-acetyl-L-cysteine (optionally) lutein, lycopene, astaxanthin, plant sterols, isoflavones, garlic extract, which provides allicin green tea extract, cruciferous vegetable extract, fruit extracts, coenzyme Q-10, and resveratrol. Fatty acid mixtures include eicosapentaenoic acid and docosahexaenoic acid.Methods of treatment of a subject exposed to a radiation source or an oxidative stress with the radiation-oxidative exposure treatment composition include the step of administering to the subject a daily dose of the radiation-oxidative exposure treatment composition such that the life shortening effects induced by the radiation source or the oxidative stress are ameliorated.
