Is it a heart valve operation? It's that valve. Precautions after valve surgery 1) Diet: Pay attention to maintaining balance after valve surgery. Generally speaking, a diet with low fat, low cholesterol and high fiber content is the most suitable. Patients undergoing bioprosthetic valve replacement can't supplement calcium casually. Patients undergoing mechanical valve replacement should avoid eating a lot of food and alcohol rich in vitamin K during taking anticoagulants. Foods rich in vitamin K include yogurt, alfalfa, egg yolk, safflower oil, soybean oil, cod liver oil, seaweed and green leafy vegetables. Foods rich in vitamin K include yogurt, alfalfa, egg-yolk carrots, tomato sauce, pumpkin, green vegetables and egg-yolk fish, fish eggs, liver, egg yolk, butter, cheese, meat, milk, fruits, nuts, vegetables and grains. Pig liver, broccoli, cauliflower, broccoli, rye and so on.