Why does my bmi say im underweight but im not reallt skinny i dont have a flat stomach?

Question

Why does my bmi say im underweight but im not reallt skinny i dont have a flat stomach?

Answer 1

maybe because you are very tall as well and might have little muscle.

This might contribute to your bmi

Answer 2

BMI's aren't very acccurate on many people because it is just a ratio of your height divided by your weight ( or something similar !) for example an olympic athlete will have a BMI telling them they are obese whereas they just have a lot of muscle.

You probably just hold most of your weight on your tummy remeber also that muscle weighs more than fat so if you excersice regularly and gain muscle but lose fat you body mass will go up.

Also being young , having a small bone stucture ,and being flat chessted all take a part in your BMI.

However i have to say that you may think you tummy is bigger than it is because 18 is very small .

i suggest you eat normallly but do a short 45min workout every day (pump it up dancemix is great fun!) and you'll soonbecome very fit and healthy.

i hope i help ... i just realised how much i wrote lol!

x*x

Answer 3

You can be skinny and still have a flabby stomach. The BMI is simply a height/weight ratio. You might not need to lose weight, you might just need to tone up. Try Pilate's and swimming.

Answer 4

Same for me!! Im chubby, and have a BMI of 18 :S

Its coz i dont exercise enough, which makes me LOOK fatter, whereas in reality I am slim.

Answer 5

BMI is worthless.  It doesn't mean anything.

Answer 6

You dont have to be skinny to be underweight.

Answer 7

I hate BMIs. It's only a god d**n number and it causes so much trouble!