Foods rich in vitamin K or those that interfere with the synthesis of vitamin K and affect the action of anticoagulants, antifibrinolytic drugs and antiplatelet drugs can affect the efficacy of warfarin, but this does not mean that patients need to completely avoid these foods, but rather that they need to maintain a relatively balanced diet, taking care to reduce the intake of foods rich in vitamin K (the daily intake of vitamin K for adults is 65-80 Micrograms), and there is no need to overly restrict the intake of vegetables with low vitamin K content (e.g., onions have fibrinolytic activity and should not exceed 60 grams per day). After all, vegetables and fruits can provide other nutrients that are necessary for the health of the whole organism. Foods rich in vitamin K are sour cheese, pork liver, egg yolk, barley, beans, carrots, tomatoes, safflower oil, soybean oil, cod liver oil, seaweed, broccoli, green peppers, garlic, ginger, cauliflower, green leafy vegetables (spinach, rape, alfalfa, lettuce, cabbage) and pears, apples, peaches, oranges, etc. Green leafy vegetables are rich in vitamin K. The vitamin K content per 100 grams of vegetables is 380 mg of spinach, 315 mg of dark green leafy lettuce and 145 mg of cabbage. In fact, in addition to attention to avoid excessive intake of vitamin K-rich foods, but also in life care methods. Some people abuse antimicrobials and “detoxification and bowel cleansing” health care method, disrupting the balance of intestinal flora (for example, quinolone antibiotics with broad-spectrum antibacterial properties in killing disease-causing microorganisms, but also reduce the production of vitamin K and clotting factors of intestinal beneficial flora, resulting in prolonged clotting time), easily resulting in vitamin K deficiency, these people If warfarin is used, it also tends to cause bleeding