Digestion is the process of breaking down foods to supply the body with nourishment and energy. Foods mix with digestive juices and move through the digestive tract, completing in the small intestine. Foods such as fats or proteins may not digest easily. However some foods are easier to digest for adults and pass through the digestive system quickly, such as yoghurt, bland carbohydrates and plain chicken. Ripe and stewed fruits also digest easily.
Yoghurt is a great source of calcium for adults who may have problems digesting. Many people have problems digesting dairy products due to the lactose (sugar). However, yoghurt contains lactase, the enzyme required to break down lactose for correct digestion. Yoghurt is created with a bacterial starter culture and pasteurised milk. The bacteria react with the sugar and create lactic acid, which gives yoghurt a tangy taste and creamy texture. Yoghurt is easy to digest due to the live bacteria cultures, which aids in the digestion process. However, some yoghurts are heat-treated to enhance shelf life. This process kills the essential bacteria and no longer renders the yoghurt helpful to digestion, so choose yoghurt that is labelled "live culture." Yoghurt containing live cultures should be refrigerated and eaten prior to the expiration date.
Bland carbohydrates are easily digestible foods from refined grains. According to the Mayo Clinic, those recovering from gastroenteritis -- an inflammation of the stomach and intestines that causes nausea and vomiting -- should ease back into eating with easily digestible bland foods, such as unsalted plain soda crackers, dry white toast and plain white rice. Plain hot oatmeal, cream of wheat and plain noodles are also easily digested.
Plain chicken boiled or broiled and served skinless is easy to digest and provides essential nutrients such as iron and B vitamins. Fat is not easily digested, so avoid fried and breaded chicken. The Mayo Clinic suggests also avoiding spices or highly seasoned foods when recovering from gastroenteritis or stomach ailments.
Ripe and Stewed Fruits
Fruits with low levels of acidity are easy to digest. Ripe bananas, plums and pears contain little acidity and therefore are easy for adults to digest. According to the National Digestive Diseases Information Clearinghouse, digestible carbohydrates include starch and sugar, which is easily broken in molecules by enzymes in saliva. Fruits supply essential vitamins and minerals required for your immune system. Stewed fruits such as peaches, pears and apples are fundamentally processed foods with the fibre broken down, which makes digestion easier.