Table 1 Operational definitions

Normal Weight Obesity (NWO)

BMI 18.5–24.9 kg/m^2 with high BF% (≥ 25% for men, ≥ 32% for women)

Non-obese (NO)

BMI 18.5–24.9 kg/m^2 with normal BF%

Obese (OB)

BMI ≥ 25 kg/m²

Body fat percentage. % [9]

Male

Essential fat: 2—5

Athletes: 6—13

Fitness: 14—17

Acceptable: 18—24

Obese: ≥25

Female

Essential fat: 10—13

Athletes: 14—20

Fitness: 21—24

Acceptable: 25–31

Obese: ≥32

BMI, Kg/m² [10, 11]

Underweight < 18.5

Normal:18.5–22.9

Obverweight > 23

At Risk:23-24.9

Obese: ≥25

Class-1:25-29.9

Class-2:>30