Figure 5. Reduction in oxidative stress following GF diets. (A) MDA levels in the brains of aged rats subjected to control or GF diets. (B) SOD activity in the brains of aged rats following feeding control diets or diets enriched with GF formulas. (C) DCF assay in the brains of aged rats following feeding control diets or diets enriched with GF formulas. N = 20 per group. P<0.001.