Intracellular reactive oxygen species (ROS) (a), cellular apoptosis (b), and short telomere cells (c) in HUVEC incubated with serum samples after each dietary period. N = 20. Values are means with standard error represented by vertical bars. SFA diet saturated fat-enriched diet, MedDiet Mediterranean diet, CHO-ALA diet low-fat, high carbohydrate diet enriched in n-3 PUFA (polyunsaturated fatty acid)