Many people with cancer find that there are times when they can’t eat as much as usual, and sometimes they lose weight.
There are lots of reasons for this: it can be related to the cancer itself, or to the side effects of different treatments. Some people find that they don’t feel hungry, or feel full soon after starting a meal. Others find that food makes them feel sick (nausea), or that their treatment makes some foods taste different.
Some types of cancer make your body use up more energy, even if you’re not very active. The cancer may produce chemicals that make your body work faster than normal. It may also produce chemicals that make your body break down fat and protein more quickly. This can make you lose weight, even though you may still be eating well.
It’s important to try to keep active, even if you are losing some weight. Without some form of activity, our muscles can quickly get weak. But activity should be done at your own pace. Gentle exercise, such as going for a short walk, may be all that you need. Your doctor, nurse or physiotherapist can advise you about how much and which type of exercise would be helpful for you.