Dietary fiber refers to the indigestible parts of plant foods that provide numerous health benefits when consumed as part of a balanced diet. It is essential for maintaining digestive health, regulating blood sugar levels, preventing constipation, and reducing the risk of chronic diseases such as heart disease, diabetes, and certain types of cancer. Fiber can be found in a variety of foods such as fruits, vegetables, whole grains, legumes, and nuts. Researchers continue to study the effects of dietary fiber on overall health and well-being, and recommendations for daily intake levels vary based on individual needs and dietary preferences.