There is no such thing as cancer’s most feared vitamin. Vitamins do not prevent cancer and have no direct therapeutic effect on cancer treatment. Cancer patients can eat foods containing vitamin C, vitamin A, vitamin E and vitamin B, such as tomatoes, egg yolks, pistachios and millet. Clinically there is no such thing as the vitamin that cancer is most afraid of. Cancer patients can usually eat tomatoes, cucumbers, bananas, oranges, grapefruit and other vitamin C vegetables and fruits, as well as egg yolks, animal liver and other vitamin A-rich foods. In addition, patients who develop cancer should also eat foods rich in vitamin E and vitamin B, such as pistachios, cashews, black sesame seeds, as well as millet, oats and other vitamin B-rich foods. Although there is no cancer’s most feared vitamins, cancer patients eat vitamin-rich foods, which is conducive to replenish the nutrients for the organism. In addition, patients usually have to eat protein-rich food, such as lean meat, milk, fish, eggs and so on. Patients appear cancer usually also need to appropriate physical exercise, such as fast walking, jogging, jumping rope, cycling, swimming and so on.