Body Mass Index (BMI) has long been used as the standard tool for identifying individuals as underweight, normal weight, overweight, or obese. But evidence suggests that BMI may not accurately reflect true metabolic health, particularly in individuals with a normal BMI but with excessive body fat – known as Normal Weight Obesity (NWO) . Here we outline how NWO presents a significant risk for cardiometabolic diseases and is closely related to lean non-alcoholic fatty liver di