The side effects of cancer and its treatments might cause problems with your eating, digestion and weight.
Cancer treatment can cause taste changes and a loss of appetite.
Losing weight when you are not trying to is a common symptom in people with cancer.
Some cancers and their treatments can cause a sore mouth and throat. This can make chewing and swallowing difficult.
Cancer or its treatment can cause digestion problems such as constipation, diarrhoea, sickness (nausea) and sometimes a blocked bowel.
Cachexia is a complex change in the body, causing you to lose weight despite eating normally.
Cancer and some of its treatments can lead to you not having enough fluid in your body (dehydration).