It is important to keep in mind that, according to the NCI, there is no evidence that any specific kind of diet or food alone can either cure cancer or completely stop it from coming back in humans. In fact, some diets may be harmful, especially those that don't include a variety of foods. Also, too much of some vitamins or minerals can be just as dangerous as too little, and large doses of some vitamins may even stop your cancer treatment from working the way it should. Eating a diet with plenty of fresh fruits, vegetables, whole grains, and omega three fatty acids may help you to feel better. Remember to exercise.
Many people eat out of stress, boredom, frustration, or for pleasure.
Ask yourself if you are hungry or eating out of habit. In fact, the best foods for you right now may be very different from those in the Food Pyramid, depending on the type of treatment you are receiving or how you feel. For example, if nausea makes certain foods unappealing, try to eat more of the foods that appeal to you. Some times changing the form of a food will make it more appetizing and help you eat better. For example, if eating whole fresh fruit is a problem, you might try mixing canned fruit into a milkshake.