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During Cancer Treatment: Protein Needs

Katrina VB. Claghorn, M.S., R.D., L.D.N.
Abramson Cancer Center of the University of Pennsylvania
Last Modified: June 29, 2006

Why protein is important

Protein is very important to keep your body functioning and is also needed for growth and repair. Protein is found in almost all body cells and has many roles such as:

• To form and maintain muscles, tissues, red blood cells, enzymes, and hormones
• To carry many body compounds and medications
• To maintain fluid balance
• To fight infections and strengthen the immune system

In general, your diet will provide enough protein. However, during cancer treatment (such as surgery, radiation therapy and chemotherapy) your protein requirements may increase. It is important to be aware of food sources of protein and to include these foods at meals and snacks.

Your protein requirement

To come up with a quick estimate of your protein requirement:

• Take your weight (in pounds) and divide by 2
• The number you get is the approximate number of grams of protein you need daily

For example: If you weigh 180 pounds, 180 ÷ 2 = 90 grams of protein daily

If you are receiving chemotherapy, radiation or surgery you may need more protein. Your dietitian can help you figure out your protein needs during treatment.

Food sources of protein

Protein is found in both animal and plant foods. Animal sources of protein include meat, poultry, fish, eggs and dairy products. Plant sources of protein include nuts, seeds, tofu and legumes (dried beans, peas and lentils). Grains (cereals, breads and rice) and vegetables contain a little protein. Fruits and fats do not have any protein.