Many doctors use a height/weight system known as the "Body Mass Index" (BMI) as a rough guide to determine whether someone is of average weight, overweight or obese. BMI can be calculated by dividing your weight in kilogram by square of your height in meters.
BMI ranges slightly differ for men and women. BMI values signify underweight, ideal weight, overweight, or obese.
Table of Body Mass Index
To use the table, find the appropriate height in the left-hand column labeled Height. Move across to a given weight. The number at the top of the column is the BMI at that height and weight. Pounds have been rounded off.
You should consider losing weight if
your BMI is 30 or greater.
your BMI is 25 and you have at least two weight-related health problems.
your waist circumference exceeds 35 inches (for women) & 40 inches (for men) and you have at least two weight-related health problems.
An increased BMI is associated with an increased risk for heart disease, stroke, type-2 diabetes and several cancers.
Body Mass Index(BMI) and the table for different age people are given on this page. Know the safe BMI value for you.
Negative Calorie Foods eBook