CAT and colorectal cancer: The study by Danwilai et al., on 2017, subjects with colorectal cancer showed that the ginger significantly increased superoxide dismutase (837 ± 74.9 vs. 442.3 ± 31.6 U/ml), catalase (68.1 ± 3.4 vs. 44.4 ± 2.3 kU/ml), glutathione peroxidase (23.0 ± 1.3 vs. 10.8 ± 0.9 U/ml), and reduced/oxidized glutathione (23.4 ± 1.3 vs. 15.1 ± 1 U/ml) compared to placebo (Danwilai et al., 2017).