The WHO regards a BMI of less than 18.5 as underweight and may indicate malnutrition, an eating disorder, or other health problems.

A BMI between 18.5 and 25 is considered normal and healthy.

People who fall into this category may be at risk of developing obesity.
This was earlier classified as "overweight".

People who have BMI equal or over 30 may have obesity, which is defined as an abnormal or excessive accumulation of fat that may harm health.

People who have BMI equal or over 30 may have obesity, which is defined as an abnormal or excessive accumulation of fat that may harm health.

People who have BMI equal or over 30 may have obesity, which is defined as an abnormal or excessive accumulation of fat that may harm health.