THIS gym girl has said her healthy body looks "amazing" despite what the scale says.
Body Mass Index (BMI) is a measure of body fat based on height and weight.
The calculation is also used as a screening tool for any weight-related health problems, however, it cannot diagnose a person with an illness.
The index was first coined in 1972 after it was published in the Journal of Chronic Diseases but many people have criticized the formula for being outdated in the modern age.
"BMI is such BS fr," wrote one person. "You look amazing and so strong."
Another person agreed, writing: "Fr the BMI scale is outdated."
"I'm obsessed this is the inspo I need," wrote a third person.
"We're the same size!!!" said another viewer. "OMG I LOVE U"
