What is appetite change? How is it caused? Chemotherapy can cause a change in appetite. You may not have an appetite because of nausea (the feeling that you are going to vomit), or you may have difficulty eating or be reluctant to eat because of pain in your mouth and throat, and sometimes the medication may make you unable to feel the taste of food. Poor mood and fatigue can also affect appetite. Poor appetite can last for a day, weeks or even months. It is very important to eat well, try to eat even if you have no appetite, and eat and drink foods that have enough protein, vitamins and calories. Good eating helps the body fight infection and repair damage from chemotherapy. Poor eating can lead to weight loss, weakness, and fatigue. Some chemotherapy treatments can increase appetite and weight gain. Be sure to ask your doctor, nurse, or dietitian what appetite changes are caused by the treatment and how you should respond. Eat 5-6 small or quick meals a day instead of 3 large meals Choose foods and drinks that are high in calories and protein, see the “Food List” section of this website. Design a daily meal plan (including fast food) Think about eating when it is time to eat and do not wait until you are hungry; you may not feel hungry during chemotherapy, but it is still necessary to eat. If you do not want to eat solid food, you can drink soups, juices, and a variety of milk and juice mixes. These types of drinks provide the needed protein, vitamins, and calories. Use plastic utensils such as spoons and forks Certain chemotherapy treatments leave you with a metallic taste in your mouth. Using plastic utensils to reduce this taste, such as special glass pans or other non-metallic items for cooking can also help. Increase your appetite by being active For example, taking a short walk before lunch will increase your appetite. Also, don’t drink too much before or during a meal as this may affect your appetite. Change your eating routine Change the place where you eat from the kitchen to the dining room, eat alone to eat with others, turn on the radio or TV if you are eating alone, and you can change recipes often.