Prediabetes
（重定向自Prediabetic state）
Prediabetes is the precursor stage to diabetes mellitus in which not all of the symptoms required to label a person as diabetic are present, but blood sugar is abnormally high. This stage is often referred to as the "grey area."
Metabolic syndrome and prediabetes may be the same disorder, just diagnosed by a different set of biomarkers.