This is interesting. My result:

You're most like someone from Ethiopia

Obesity Index
19bmi

National
Below average
You have a lower BMI than 95% of females aged 45-59 in your country

Global
Below average
You have a lower BMI than 83% of females aged 45-59 in the world

If everyone in the world had the same BMI as you, it would remove 51,216,051 tonnes from the total weight of the world's population