They measured height, weight and body mass index - calculated by dividing weight in kilograms by the square of your height in metres.

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All models were required to have a body mass index -- a ratio of height and weight -- above 18, the minimum limit considered healthy by the World Health Organization.

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Jackson won't reach her goal weight of 164 pounds -- a healthy body mass index for her 5-foot-8 frame -- by her birthday in February.

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The study also took into account body mass index (BMI) - a measure which relates weight to height.

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The FDA approved Qsymia only for obese people or for overweight people with a body mass index greater than 27 who also suffer from weight-related conditions like hypertension and diabetes.

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It also recently launched its Wi-Fi Smart Scale, which transmits your weight, body fat and body mass index to the cloud.

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Unfortunately, the recent Journal of the American Medical Association publication analyzing life expectancy correlations to one imperfect calculation of relative weight (BMI, the body mass index) distracts readers all-too-eager to cling to its implications that being chubby is actually better.

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By controlling for individual and environmental influences on weight, such as income and health, they then measure whether food-price changes affect body-mass index (BMI).

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Jain also gets his patients to use a body weight tracker called BMI by NutriSystem to track their body mass index, since depression is a mind-body disorder.

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