 On the other hand, herbal products like curcumin, as a single ingredient has poor bioavailability problem that restricts its use as standalone treatment. Inulin works as pre-biotic and help to maintain gut microbiota which is considered as precursor for progress of prediabetes to diabetes. However, it does not have any role in primary pathophysiology of impaired glucose metabolism, i.e. pancreatic β cell dysfunction, insulin resistance, hepatic gluconeogenesis or intestinal glucose absorption. Resveratrol and omega-3 basically work on anti-oxidant pathways. 