text: The Body Mass Index is a useful measure of an individual's current weight related to an ideal body weight. An ideal BMI is generally between 20.5 and 21.5. A BMI greater than 30 (usually what you find on the biggest loser) is associated with increased cardiovascular risk and other health problems related to obesity. \n\nHere's a calculator to figure out your BMI:\nhttp://www.preventdisease.com/healthtools/articles/bmi.html