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Orange Juice Ingestion and Supplemental Vitamin C Are Equally Effective at Reducing Plasma Lipid Peroxidation in Healthy Adult Women

Department of Nutrition, Arizona State University East, Mesa, Arizona

View larger version (134K): [in a new window]   Fig. 1. Plasma vitamin C concentrations in free-living subjects (n = 11) immediately prior to and after a two-week diet intervention: 8 fl.oz. orange juice daily (66 mg ascorbic acid), 16 fl.oz. orange juice daily (122 mg ascorbic acid); and 1 vitamin C supplement daily (69 mg ascorbic acid/capsule). All subjects received each two-week treatment proceeded by a two-week washout period in a randomized, crossover fashion. There were no significant differences among groups at pre-intervention or at post-intervention. An asterisk denotes a significant change from pre-intervention (p < 0.05).

View larger version (125K): [in a new window]   Fig. 2. Lipid peroxidation (plasma TBARS) in free-living subjects (n = 11) immediately prior to and after a two-week diet intervention (see Fig. 1 legend for intervention protocol). There were no significant differences among groups at pre-intervention or at post-intervention. An asterisk denotes a significant change from pre-intervention (p < 0.05).