Levan is a high-molecular, β-(2→6)-linked fructose homo-polymer with the glucose residue bound to the terminal fructose by α-glycosidic bond. The knowledge of occurrence, biosynthesis, and properties of this fructan is extensive. Research results show a large potential for practical applications of levan and its hydrolysis products in the domain of food with pro-healthful properties. The main factors limiting the application of levan in diet is its availability and the lack of unambiguous data referring to the comprehensive impact of this fructan on human organism and/or on experimental animals. In this paper, a research into some indicators of pro-healthful impact of levan and levulans are presented. Possible applications of levan are also surveyed.