The latest commonly used index of body weight: body mass index (bmi).
The calculation method is: weight (kg) divided by the square of height (m), and the ideal value is 22.
For example, for a male with a height of 170cm, the ideal weight is:
1.7 (m) × 1.7 (m )× 22 = 63.6 (kg)
Note: The ideal value for young women is 20 or 2 1.
In nutritional assessment, a bmi of less than 18.5 is called malnutrition, and a body mass index of more than 25 is called overweight.
Why is the ideal bmi set at 22? This is because statistics show that people with a bmi of 22 have the lowest mortality rate and the highest average life expectancy, regardless of gender.
Two other common ideal weight formulas are as follows:
1, ideal weight =62-( 170- height) ×0.6 (male)
=52-( 158- height) ×0.5 (female)
2. Ideal weight = (height -80)×0.7 (male)
= (height -70)×0.6 (female)
These two formulas are not so much "ideal weight" as "average weight", because formula 1 is closer to the average value than formula 2, and because it is easier to calculate than bmi, it is still widely used by medical personnel.