Body Mass Index

A more recent approach to the evaluation of nutritional status refers to body mass index (BMI). It affords a more accurate measurement, as follows: body weight (kg)/height2 (m2).

The reference table (Table 11) includes only five classes: 0 = < 20 kg/m2, weight deficit; N = 20-24.9 kg/m2, normal; 1 = 25-29.9 kg/m2, mild weight excess; 2 = 30-39.9 kg/m2, obesity; 3 = > 40 kg/m2, severe obesity.

Table 11. Body mass index: values of the body classes

0 =

< 20.0 kg/m2

Body mass deficit

N =

= 20.0-24.9 kg/m2


1 =

25.0-29.9 kg/m2

Moderate excess of weight

2 =

30.0-39.9 kg/m2

Significant excess of weight

3 =

> 40.0 kg/m2

Very significant excess of weight

Recently it has been proposed that the obesity threshold should be lowered to 25 kg/m2, based on epidemiological studies showing an increase in all-cause, metabolic, cancer and cardiovascular morbidity when BMI is greater than or equal to 25. In normal adults in western countries, the mean is 24, in less developed countries it is 20-21, with a mean of 18 in some cases.

BMI has been used in social and economic studies and a good correlation was observed with lean muscle mass, serum albumin levels, oxygen expenditure, hydrostatic weight measurement, potassium and water content. A statistically significant correlation of BMI and morbidity-mortality from all causes, diabetes, cardiovascular and infectious diseases, and cancer has been shown by unequivocal studies.

5 Ways To Get Rid Of The Baby Fat

5 Ways To Get Rid Of The Baby Fat

Many women who have recently given birth are always interested in attempting to lose some of that extra weight that traditionally accompanies having a baby. What many of these women do not entirely realize is the fact that breast-feeding can not only help provide the baby with essential vitamins and nutrients, but can also help in the weight-loss process.

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