Some people lose their appetite during radiation therapy.
The causes are many and varied and can be due to the effect of therapy, stress, fatigue, site-specific effects of radiation, pain, or changes in the usual life style. People who are well-nourished generally have fewer or less severe reactions to radiation therapy. Good nutrition is very important during radiation therapy because protein and calories are needed to repair normal cells. Exercise lightly before meals to stimulate the appetite. Don t drink fluids with meals.