The side effects of cancer and its treatments might cause problems that make it difficult to eat enough and stay at a healthy weight.
Read how cancer treatment can cause taste changes and loss of appetite.
This is weight loss when you are not trying to. It is a very common symptom in people with cancer. It may be one of the reasons you first go to the doctor.
Find out how some cancer treatments can cause side effects that might make chewing and swallowing difficult.
Read how cancer and its treatment can affect your digestion, causing problems like diarrhoea, constipation, sickness (nausea) and sometimes a blocked bowel.
Find out about cachexia, also called wasting syndrome or anorexia cachexia syndrome.