← Obesity Export Options Alphabetize Word-Def Delimiter Tab Comma Custom Def-Word Delimiter New Line Semicolon Custom Data Copy and paste the text below. It is read-only. Select All Body Mass Index A measure of weight in relation to height (kg/m square) Severely Obese BMI of 40 or more Moderately Obese BMI of 34.9-39.9 Obese BMI of 30.0-34.9 Overweight BMI of 24.9-29.9 Normal BMI of 18.5-24.9 Underweight BMI of 18.5 or less Orlistat Drug that works on gastrointenstinal system to reduce fat absorption. Phentermine Drug that works on the CNS to suppress appetite. Gastric by-pass Surgery to reduce stomach capacity from wine glass to shot-glass size and reconfigures small intestine. High mortality rate of 1%. Metabolic Theory This theory of obesity states that your are more likely to inherit a slow or quick metabolic rate. Fat cell theory This theory of obesity states you can only have fat cells at a certain size and once they get too big, they divide. You can only deflate existing fat cells, but cannot get rid of them.