1.2　Diet

CP is a progressive inflammatory disease that leads to fibrosis and different degrees of exocrine and/or endocrine insufficiency.Both may lead to malnutrition over time.The dietary approach is used not only for treatment，but also for prevention of reoccurrence of the condition.Only after total abstinence from alcohol should dietary recommendation be carried out.Generally，a protein diet of 50-75 g is sufficient and well tolerated for an adult and it is better when 30-40%of the energy is absorbed from fats especially vegetable fats.If steatorrhea persists，medium chain triglycerides（MCT）can be given to relieve the symptom as they are directly absorbed across the small bowel，but higher doses may be ketogenic and associated with adverse events.Since CP can lead to fat malabsorption，fat soluble vitamins（A，D，E and K），vitamin B 12 and other micronutrients should be supplemented as needed.Frequent small meals，low-fat elemental diet composed of purified amino acids but rich in carbohydrates，calories，essential fat-soluble vitamins can benefit patients with CP（Majumder and Chari 2016；Hobbs et al.2016；Yaghoobi et al.2016）.Survey showed although patients have theoretical knowledge，they seldom implement the diet on a daily basis.So paying more attention to nutritional education for patients suffering from pancreatitis is necessary（Lohr et al.2013）.Of course pancreatic enzyme supplementation with acid suppression therapy is also an essential which will be discussed detailedly later.(https://www.daowen.com)