Wednesday, October 6, 2010

Cancer--Living with Cancer

Illustration of cancer cells


Cancer is a major illness, but not everyone who gets cancer will die from it. Millions of Americans alive today have a history of cancer and had successful treatment. For them, cancer has become an ongoing health problem, like high blood pressure or diabetes.
For most people with cancer, living with the disease is the biggest challenge they have ever faced. The disease changes your routines, roles and relationships. It can cause money and work problems. The treatment can change the way you feel and look. This page includes information on different aspects of living with cancer. Special sections cover nutritional, financial, emotional and sexual issues.
Cancer - Also called: Carcinoma, Malignancy, Neoplasms, Tumor 

Cancer begins in your cells, which are the building blocks of your body. Normally, your body forms new cells as you need them, replacing old cells that die. Sometimes this process goes wrong. New cells grow even when you don't need them, and old cells don't die when they should. These extra cells can form a mass called a tumor. Tumors can be benign or malignant. Benign tumors aren't cancer while malignant ones are. Cells from malignant tumors can invade nearby tissues. They can also break away and spread to other parts of the body.
Most cancers are named for where they start. For example, lung cancer starts in the lung, and breast cancer starts in the breast. The spread of cancer from one part of the body to another is called metastasis. Symptoms and treatment depend on the cancer type and how advanced it is. Treatment plans may include surgery, radiation and/orchemotherapy.
Diet - cancer treatment
People with cancer need special nutritional planning and management.
Function
People with cancer are at risk for developing nutritional deficiencies. The deficiencies may be the result of the cancer itself, or the side effects of common cancer treatments such as surgery, chemotherapy, and radiation therapy.

Cancer directly affects your nutritional status by changing the body's metabolism and causing you to lose your appetite. Your body increases energy use, which means you need more calories to maintain your current weight and lean body mass. Cancer-associated loss of appetite is probably the result of physical changes but may also be due to a psychological response to the disease.

Cancer also causes individual changes in the body's ability to break down carbohydratesprotein, and fat. These changes lead to the loss of muscle and fat.

Several things may contribute to the type and degree of nutrient deficiencies:
  • Where in the body the cancer occurs
  • How severe the cancer is at the time of your diagnosis
  • What symptoms you have
  • The type of cancer treatment, and how often you receive it
  • Side effects associated with your cancer treatment
  • How the cancer affects your ability to eat and tolerate food and nutrients

Food Resources

People with cancer frequently require a high-calorie diet to prevent weight loss. They may also need a diet that is high in protein to prevent muscle wasting. Foods that are high in calories and protein include peanut butter, whole milk, milkshakes, meats, and cheeses.

Some individuals with cancer develop an aversion to fats. If this happens, eat high-protein foods with a lower fat content such as low-fat shakes, yogurt, cottage cheese, and lean meats.

For the diet to remain well-balanced, you must eat fruits and vegetables. To increase calories, use more fruit juices or dried fruits rather than whole fruits. Choosing calorie-dense vegetables such as corn and peas will also increase the calories in the diet.

Side-effects

The side effects of common cancer therapies vary by the treatment and the area of the body undergoing treatment. The following are some side effects and helpful suggestions. They do not replace, but rather aid, drugs used to relieve these symptoms.

CHEWING AND SWALLOWING DIFFICULTY
Thick liquids such as milkshakes or semisolid foods like mashed potatoes and gravy may be easier to swallow and are less likely to cause aspiration (inhaling food).

PAIN, NAUSEA, VOMITING, DIARRHEA
Eating a meal immediately before or after the treatment may ease symptoms. Your position while eating may also contribute to symptoms.

TASTE CHANGES AND AVERSIONS
  • Avoid foods with strong odors.
  • Eat bland foods. Avoid strong flavors like spices, acidic foods, and sour-tasting foods.
  • Eat cold foods. Avoid hot or warm foods.
  • If you are experiencing severe nausea, avoid your favorite foods. Eating a food during severe bouts of nausea may cause you to develop an aversion to it.

BODY WEIGHT LOSS AND MUSCLE WASTING
  • Add diced meat or cheese to sauces, vegetables, soups, and casseroles.
  • Add extra eggs or egg whites to foods. Never use raw eggs. They may be contaminated with salmonella, which is dangerous for everyone but especially those who are immune-suppressed. Raw eggs also contain a vitamin binder.
  • Add powdered milk to foods and beverages.
  • Consider using commercially available nutritional supplements. Make your own high-calorie shake by adding an instant breakfast drink mix to milk, fruit, cookies, peanut butter, or other favorite mixers.
  • Drink high-calorie beverages such as juices, milk, or sweetened drinks.
  • Eat smaller, but more frequent meals.
  • If you are unable to digest fat, talk to your health care provider about alternative fat sources. Supplements containing medium-chain triglycerides are often recommended for this purpose.
  • Increase fats in the diet to increase energy consumption, if you are tolerating fats. Add margarine or butter to breads and vegetables. Add gravies and sauces to foods in large amounts.
  • Increase protein and calories in the diet.
  • Snack throughout the day on calorie-dense foods such as nuts, hard candy, and dried fruits.

LACTOSE INTOLERANCE
Some cancer patients become unable to digest dairy products, which is called lactose intolerance. Symptoms include bloating, gas, and diarrhea immediately after eating lactose-containing foods.

People with lactose intolerance have trouble digesting the sugar in milk. Lactose intolerance is due to an inability to produce lactase, the enzyme that digests milk. The wall of the gastrointestinal tract produces this enzyme. You can take lactase to help you digest lactose products.

You can also buy lactose-free milk at most grocery stores. Cultured dairy products such as yogurt, cheeses, and buttermilk will contain less lactose, because the active cultures help to digest it.

You may be able to tolerate small amounts of lactose occasionally. Or, you may have to remove lactose entirely from your diet until you have fully recovered from your cancer therapy.

DUMPING SYNDROME
Surgery on the stomach may cause dumping syndrome. If you have dumping syndrome, food is "dumped" into the small intestine 10 or 15 minutes after being swallowed. Ordinarily, food is partially digested in the stomach, then released gradually into the digestive tract.

The presence of undigested food in the intestine leads to:
Recommendations for dumping syndrome are:
  • Drink fluids 30 minutes before a meal or 30 - 60 minutes after a meal.
  • Eat smaller, more frequent meals.
  • Lie down immediately after eating.
  • Restrict refined carbohydrates and increase protein and fat in the diet.

LOSS OF APPETITE
If you are experiencing loss of appetite, adjust your diet to include any foods that appeal to you. Consider asking your doctor about appetite-stimulating drugs.

Recommendations

Objectives for a cancer treatment diet:

To achieve or maintain optimal nutrition
To receive the maximum benefit from your therapy
To reduce symptoms caused by treatment
To prevent or reverse fat loss
A registered dietitian is a trained health professional who can help people who have cancer with nutritional planning.
Your local chapter of The American Cancer Society is an excellent resource for information on cancer prevention and treatment.

For more information click Medline Plus: Medline Plus

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