Coping with Physical & Emotional Changes
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Dry Mouth or Thick Saliva

Nutrition for the Person with Cancer

When Treatment Causes Eating Problems

In this Section:

Changes in Taste and Smell

Poor Appetite

Constipation

Diarrhea

Sore or Irritated Mouth or Throat

Nausea and Vomiting

Dry Mouth or Thick Saliva

Trouble Swallowing

Unwanted Weight Gain

Fatigue

Radiation therapy to the head and neck areas, some types of chemotherapy, and certain other medicines can cause dry mouth or thick saliva. The glands that make saliva can become irritated and make less saliva, or your saliva can become very thick and sticky. Dryness can be mild or severe, and a dry mouth can increase the risk of cavities in your teeth or mouth infection. If you smoke or chew tobacco or drink alcohol, the dryness can be worse. If you have either of these side effects, drink plenty of fluids throughout the day and eat moist foods as much as possible. Also brush your teeth and rinse your mouth often with the baking soda, salt, and water solution to help keep it clean and prevent infection.

What to do

  • Drink 8 to 10 cups of liquid a day, and take a water bottle with you when you leave home. (Drinking lots of fluids helps thin mucus.)
  • Use a straw to drink liquids.
  • Take small bites and chew your food well.
  • Eat soft, moist foods that are cool or at room temperature. Try blenderized fruits and vegetables, soft-cooked chicken and fish, well-thinned cereals, popsicles, smoothies, and slushies. Avoid foods that stick to the roof of the mouth.
  • Moisten foods with broth, soup, sauces, gravy, yogurt, or creams.
  • Suck on sugarless candy or chew sugarless gum to stimulate saliva. Lemon drops often work well.
  • Keep your mouth clean. Use a soft-bristle toothbrush; rinse your mouth before and after meals with plain water or a mild mouth rinse (made with 1 quart water, 1 teaspoon salt, and 1 teaspoon baking soda); and floss regularly. It is also a good idea to gently brush your tongue too.
  • Avoid commercial mouthwashes, alcoholic and acidic drinks, and tobacco.
  • Limit drinks with caffeine, such as coffee, tea, colas, and chocolate.
  • Use a cool mist humidifier to moisten room air, especially at night. (Be sure to keep the humidifier clean to avoid spreading bacteria or mold in the air.)
  • Saliva substitutes are helpful if your salivary glands have been removed by surgery or damaged by radiation therapy. These products add moisture to your mouth. Nutritional supplements, such as liquid meal replacements, may be helpful during this time.

What to eat or not eat when you have a dry mouth*

  Eat Foods that may cause problems
High protein Meats, poultry, and fish in sauces and gravies; casseroles, soups, and stews Dry meats, poultry, and fish without sauces
Breads, cereals, rice, and pasta Bread, rolls; cooked and cold cereals, cereal with milk; rice soaked in gravy, sauce, broth, or milk Dry breads, rolls, pasta, rice, pretzels, chips, and cereal
Fruits and vegetables Canned and fresh fruits that have a lot of moisture, such as oranges and peaches; vegetables in sauce Bananas, dried fruit, vegetables, unless in a sauce or with a high moisture content
Drinks, desserts, and other foods Club soda, hot tea with lemon, fruit-ades, diluted juices, sports drinks, commercial liquid nutrition supplements, homemade milkshakes; ice cream, sherbet, pudding; butter, margarine, salad dressing; sour cream, half-and-half Cookies, cake, pie, unless soaked in milk

*Adapted from Eldridge B, and Hamilton KK, Editors, Management of Nutrition Impact Symptoms in Cancer and Educational Handouts Chicago, Il: American Dietetic Association; 2004.

Revised: 02/04/2008