Introduction: Critical patients present systemic inflammatory process that can be followed by decrease in plasma concentrations of antioxidant vitamins.
Objective: [corrected] The aim of this study was to evaluate the effect of the supplementation of antioxidant vitamins in critical patients and their relation with lipid peroxidation.
Methods: 23 patients went on a standard diet (G1) and 11 went on a diet with daily supplementation of 10,000 IU of vitamin A, 400 mg of vitamin E and 600 mg of vitamin C (G2).