In many people with Cystic Fibrosis, the small channels that carry the digestive juices become clogged with sticky mucus. The enzymes then build up in the pancreas, which becomes inflamed and damaged over time.

The effect of Cystic Fibrosis on the pancreas varies from person to person and around 5-10% of people with CF retain some useful function. Most people have to take enzyme pills to help digest food.

A suitable diet is also very important for people with Cystic Fibrosis. A good body weight can help people to fight chest infections and help the body have reserves should they start losing weight when they are ill.

The right diet for people with Cystic Fibrosis is high in energy (kilocalories), but the exact amount will vary by age and from person to person. Further information can be found in the sections for babies, children and adults or from our publications library.