In addition, the definition of fiber is added: fiber is a natural or synthetic filamentous substance. Natural, such as cotton and animal hair; Synthetic polyester yarn, acrylic yarn, etc. For example: 1. Monkey peach has high nutritional value. It is rich in soluble dietary fiber. A kiwi fruit can provide more than twice as much vitamin C as a person needs in a day. Its vitamin C content is even more than 40 times that of apples. So it is well-deserved to be called the king of fruits.