If my BMI (Body Mass Index) is 15.9 that means i'm underweight right?!


Question: But I can't gain weight. It doesn't matter what i do. I eat healthily and i'm not obsessed with my weight, but im underweight. VERY! I do have a fast metabolism but i don't think 42 kgs is healthy for a 13 yr old.Should I try o gain weight or am I okay?
Answers:
Actually it depends quite a lot on your height, so can u tell me ur height pls? Let me give u an example, I am a 11-year old girl who is 152 cm tall and 39kg. My weight is considered a bit underweight but quite healthy. However, if a girl of 11 years old who is only 135cm and 39kg, it will b considered as overweight. However, if it is a girl who is 165cm tall, her weight is only 39, she will b considered as severly underweight. So now u get wat I meant? Your age also affects whether u r underweight, overweight or juz nice.

Other Answers:
Here is a good site for you to check out. You know, the BMI is good but it is an average on the general population. Example, I am in good shape, 67 inches tall at 160lbs meaning I have a BMI = 25 which is overweight, however, as is sit here i have 10% body fat so you should also take appearance into consideration, after all, that is what most people are concerned with.
Source(s):
http://www.ifpa-fitness.com/

http://www.ifpa-fitness.com/Fitness-Resources/Charts/BMI.html

http://www.ifpa-fitness.com/Fitness-Resources/Charts/Fat_Loss--PD.html

Answers:

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