D-Mannoheptulose is primarily used in research studies to investigate carbohydrate metabolism and insulin secretion. It acts as a competitive inhibitor of hexokinase, the enzyme responsible for the first step of glycolysis. This property makes it a valuable tool in studies focused on understanding glucose metabolism and its regulatory mechanisms. Additionally, it is utilized in diabetes research to explore the relationship between glucose uptake and insulin production in pancreatic beta cells. Its ability to modulate glucose metabolism also extends to studies in cancer research, where altered glucose utilization in tumor cells is a key area of interest. Furthermore, D-Mannoheptulose has been explored in plant physiology to study sugar transport and metabolism in various plant species.