Levels of L-carnitine, oxidative stress, and antioxidant enzymes activities after supplementation. Data are means ± SD. □ week 0, ■ week 12. *Values were significantly different after intervention within the group. a, bValues with different superscripts were significantly different between the two groups. CAT, catalase; GPx, glutathione peroxidase; LC, L-carnitine; MDA, malondialdehyde; SOD, superoxide dismutase.