Cholesterol levels in blood are investigated by a blood examination called Lipid
Profile in which blood sample is taken in morning after 12 hours overnight fasting.
Weight and height are used to calculate Body mass index, which is an anthropometric index for assessing obesity.
Formula is [(weight (kg)) / (Height (m))^2]
normal :18.5 - 24.99
obese grade 1: 30-34.99
obese grade 2: 35-39.99
obese grade 3 or morbidly obese: >= 40.