Study Finds Saliva Insulin Can Differentiate Hyperinsulinemic Responses In Normoglycemic Patients With Varying Body Weights

August 19, 2025

HealthDay (8/18, Gotkine) reports a study found that “saliva insulin can differentiate between normal and hyperinsulinemic responses among normoglycemic adults with different body mass index (BMI) classes.” A total of 94 “healthy normoglycemic adults were recruited and categorized into normal weight (NW), overweight (OW), and obese (OB). Participants consumed a standardized liquid meal after fasting for four or more hours.” Researchers observed that “at all time points, saliva insulin levels were significantly higher in the OB versus the OW and NW groups. Higher insulin levels were also seen in the OW versus the NW group. Among the groups, there were no significant differences in fasting and post-meal glucose levels.” The study was published in Applied Physiology, Nutrition, and Metabolism.