Some people with M.E. have problems with their appetite and struggle to eat enough.
Other people find that because they aren't doing things, due to the illness, they have put on extra weight.
Others find they have lost weight because of the illness and then find it difficult to put weight back on. If you are feeling very weak it may be really hard to feed yourself.
If any of these sound like you, ask your doctor for advice.
A healthy diet includes starchy foods (such as potatoes, rice and pasta), plenty of fruit and vegetables, some protein foods (like meat, fish, eggs, beans and lentils) and some dairy foods like milk and cheese. Eating a variety of this kind of food - and not too much fat, salt or sugar - will give you all the nutrients that you need.
Lots of people who have M.E. think they should change their diet or take vitamin pills. It can be very confusing to know what to do.
There is probably no harm in taking one multivitamin and mineral tablet a day. Always talk to your mum, dad or carer if you are thinking about doing this.
Beware of special diets or special pills. If Action for M.E. knew of a magic cure we would be shouting it from the roof tops!
If you have tummy or gut problems that seem to be part of your M.E., you may need to cut down on high fibre cereals, brown bread, wheat or sometimes dairy products.
It may be worth trying to avoid these - one at a time, each for a few weeks - to see if that makes a difference. If you plan to cut something out of your diet long-term, talk to your doctor as it is really important to make sure that you are still getting what you need.
Food for thought
If food is a big issue for you, ask your GP for advice and support. If you think you may have an eating disorder like anorexia it is really important to get some help.