There is more to nutrition during cancer and cancer therapy than getting enough calories and protein. The foods you choose also help you cope with side effects, such as loss of appetite, nausea, vomiting, diarrhea, chewing and swallowing difficulties, and taste changes.
As each person's individual medical profile and diagnosis is different, so is his or her reaction to treatment. Side effects may be severe, mild, or absent. Be sure to discuss with your cancer care team possible side effects of treatment before the treatment begins.
Cancer treatments target fast-growing cancer cells in your body. Healthy cells that are fast growing can also be damaged. Examples of fast-growing cells include cells in the mouth, digestive tract, and hair. These may be affected by cancer treatment and can cause problems, such as your hair falling out, nausea and vomiting, or a metallic taste in your mouth. Eating well from the beginning of cancer therapy has been found to help prevent mouth problems.
Stomatitis, or mucositis, is the presence of sores in the mouth caused by some anticancer drugs. In addition to being painful, mouth sores can become infected by the many germs that normally live in the mouth. They can make it difficult to swallow and chew as well. If you develop sores in your mouth, tell your doctor or nurse. You may need medication if the sores become painful or prevent you from eating.
The following suggestions may help if you have mouth problems:
Eat the following soft, soothing foods (cold or at room temperature), and puree cooked foods in a blender to make them smoother and easier to eat:
Soft fruits (bananas and applesauce)
Soft-boiled or scrambled eggs
Macaroni and cheese
Try to avoid irritating, acidic foods and juices, hot foods, spicy or salty foods, and rough or coarse foods such as:
Tomato juice and citrus juice (orange, grapefruit, and lemon)
For mouth dryness:
Drink plenty of liquids.
Ask your doctor if you can suck on ice chips, popsicles, or sugar free hard candy. You can also chew sugar free gum. (Sorbitol, a sugar substitute that is in many sugar free foods, can cause diarrhea in many people. If diarrhea is a problem for you, check the labels of sugar free foods before you buy them, and limit your use of them.)
Moisten dry foods with butter, margarine, gravy, sauces, or broth.
Soften crisp, dry foods in mild liquids.
Eat soft and pureed foods.
Use lip balm or petroleum jelly if your lips become dry.
Carry a water bottle with you to sip from often.
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