Diet body mass index (bmi)

Published on February 13th, 2013 | by George Conte


Body Mass Index (BMI)

The BMI index is a valid measure of the nutritional status of the individual.  It can interpret differences in body composition and define the level of obesity considering the weight to height ratio but ignores the size of the human skeleton.

The BMI values ​​tend to increase with age. If the BMI is over 27 it indicates obesity and increased risk of health problems such as hypertension, diabetes and cardiovascular problems.

Classification  BMI (kg/m2) risk of health problems
Underweight <18.5 Low
Severely underweight  <16 Increased
Moderate underweight 16 to 16.99
Slightly underweight 17 to 18, 49
Normal 18.50 to 24.99 Low
Overweight 25 to 29.99 Moderate
Obesity 1st grade 30 to 34.9 Increased
Obesity 2nd grade 35 to 39.9 Greatly increased
Obesity 3rd grade ≥ 40 Too much increased
extreme obesity ≥ 60 Abnormally increased

Desirable BMI in relation to age:

Age (years) BMI (kg/m2)
19 -24 19 -24
25 -34 20 -25
35 to 44 21 to 26
45 to 54 22 to 27
55 to 65 23 to 28
> 65 24 to 29

The BMI tables are not indicative of the distribution of body fat, a factor that affects the risk of morbidity. We can easily calculate body fat percentage by using skin fold calipers.

These values ​​of BMI do not apply to athletes like bodybuilders (increased weight due to increased muscle mass), pregnant women and children in development. Due to different body compositions they have different limits on the values ​​of BMI.

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About the Author

George Conte is a student of Nutrition and Dietetics, a fitness and healthy living enthusiast. After seven years of personal experience with weight loss, exercise and a total body transformation where he managed to burn 121+ pounds of fat he became the founder of A website dedicated to help you overcome obesity and transform your life the same way he did!

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