Natural Plant-Derived Inhibitors of Digestive Enzymes: A Novel Approach for Managing Obesity and Type 2 Diabetes

Obesity and Type 2 Diabetes Mellitus (T2DM) are prevalent global health concerns, with an increasing incidence linked to modern lifestyle factors. The regulation of glucose and lipid metabolism is a crucial aspect of managing these conditions. Natural plant-derived inhibitors targeting digestive enzymes such as α-amylase, α-glucosidase, and lipase have emerged as promising therapeutic agents. These enzymes are pivotal in the breakdown of carbohydrates and fats in the digestive system. Inhibition of these enzymes reduces the absorption of glucose and lipids, contributing to better control of postprandial blood glucose levels and lipid profiles. This review aims to examine the plant compounds that have shown inhibitory activity against α-amylase, α-glucosidase, and lipase, discussing their mechanisms of action, therapeutic potential, and implications for managing obesity and T2DM. A selection of medicinal plants, including flavonoids, alkaloids, phenolics, and terpenoids, are highlighted for their potential to modulate digestive enzyme activity, thus providing an innovative and natural approach for managing metabolic disorders. The review also explores the clinical relevance of these inhibitors, their bioavailability, and the prospects for future development of natural enzyme inhibitors as adjunctive therapies for metabolic disease management. Keywords: Obesity, Type 2 Diabetes Mellitus, α-amylase, α-glucosidase, lipase, digestive enzymes, plant-derived inhibitors, glucose metabolism, lipid metabolism.