What kind of food should we give to 3rd stage cervical cancer patient who is about to undergo radiation?

Low fiber. Radiation treatment for cervical cancer includes treatment of the pelvis. One of the more common symptoms that can develop during treatment is loose stools. Often times a diet high in fiber can make this worse and so we often recommend a low fiber diet. In regards to whether a certain diet can improve the radiation treatment we don't really know the answer to that.
Diarrhea. No limitations unless patient develops diarrhea secondary to radiation.