BMI is calculated as weight (kg) divided by height (m) squared. Categories: underweight <18.5, normal 18.5-24.9, overweight 25-29.9, obesity ≥30. FDA-approved weight-loss GLP-1s require BMI ≥30, or ≥27 with at least one weight-related comorbidity (hypertension, T2D, dyslipidemia). BMI is criticized for not distinguishing muscle from fat but remains the regulatory eligibility metric.
Also known as
body mass index