These samples are edible because they do not conflict. No toxic or side effects. Mint can refresh the brain, and medlar can nourish the liver and improve eyesight. Common people can eat it, and it is suitable for patients with liver and kidney yin deficiency, cancer, hypertension, hyperlipidemia, arteriosclerosis, chronic hepatitis and fatty liver. It is more suitable for people who use their eyes too much and the elderly.