The present invention provides a composition comprisinga green-yellow vegetable (e.g., broccoli, spinach, parsley,komatsuna (Brassica rapa L.), Japanese radish leaves) and alight-colored vegetable (e.g., lettuce, cabbage, celery), thecomposition having the following effects:(1) inhibiting the generation of blood lipid peroxide；(2) lowering blood TBARS levels or suppressing the elevation ofblood TBARS levels；(3) increasing blood vitamin E levels；(4) enhancing blood antioxidant activity；(5) enhancing blood TRAP levels；(6) lowering blood active oxygen levels or suppressing theelevation of blood active oxygen levels； and(7) preventing or treating diabetic complications.
