FYI, your BMI is PDI.

Huh? Would you like a translation? Here it is: For your information (FYI), your body mass index (BMI) is pretty darn important (PDI).
Did you know you had a BMI? Body mass index is a calculation that uses your height and weight to estimate how much body fat you have. Too much body fat is a problem because it can lead to illnesses and other health problems. BMI, although not a perfect method for judging someone's weight, is often a good way to check on how a kid is growing.