Definition
People with cancer need special nutritional planning and management.
Overview & Functions
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 carbohydrates, protein, 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 Sources
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, 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
Recommendations
Objectives for a cancer treatment diet:- To achieve or maintain optimal nutrition status
- To make the best of the benefits of therapy the patient is receiving
- To reduce symptoms caused by treatment
- To prevent or reverse loss of fat
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