Used in research related to cholesterol metabolism and lipid absorption, campestanol serves as a reference compound in studies examining the effects of plant sterols on reducing cholesterol levels. It is also utilized in the development and testing of functional foods and dietary supplements aimed at managing cardiovascular health. Due to its structural similarity to cholesterol, it helps scientists understand sterol absorption and excretion in the human digestive system. Additionally, campestanol appears in analytical chemistry as a standard for identifying sterol components in biological samples and food products.