Final answer:
The term insoluble fiber on food packages refers to a type of carbohydrate that cannot be digested. It adds bulk to the diet, helps to regulate the digestive system, and can assist in lowering blood cholesterol levels.
Step-by-step explanation:
The term insoluble fiber on food packages refers to a type of carbohydrate that our bodies cannot digest. Unlike proteins, fats, or vitamins, insoluble fiber is found in the cell walls of plants and helps add bulk to our diet. It plays a critical role in the digestive system by promoting regular bowel movement and preventing constipation. It also may help to regulate blood glucose levels and can assist in lowering blood cholesterol by binding with cholesterol in the intestines and preventing it from being absorbed into the bloodstream.
Common sources of insoluble fiber include vegetables, whole grains, and the skin of fruits. As part of a balanced diet, insoluble and soluble fibers are both important components, with soluble fiber also offering unique health benefits such as being able to dissolve in water and forming a gel-like substance within the digestive tract.