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BMI Full Form: Meaning, Formula, Health, Limitations

The term “BMI” stands for “Body Mass Index.” It is a widely utilized mathematical formula that serves as a valuable tool in assessing an individual’s body weight relative to their height. This index provides a quantified measure that helps healthcare professionals and individuals alike understand the implications of one’s weight on overall health and well-being.

The Body Mass Index is derived by dividing a person’s weight in kilograms by the square of their height in meters. The resulting value is expressed as a numerical figure, and this figure is then categorized into various ranges to determine whether a person falls within an underweight, healthy weight, overweight, or obese classification.

BMI and health risks

Although BMI is a good indicator of obesity and overweight, it is not an exact measure of health risk. People who have a BMI of 30 or greater are more likely to develop certain chronic conditions, such as:

  • Heart disease
  • Stroke
  • Type 2 diabetes
  • Certain types of cancer
  • Gallbladder disease
  • Sleep apnea
  • Osteoarthritis
  • Fatty liver disease
  • Kidney disease
  • Pregnancy complications
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BMI and body composition

Body mass index (BMI), that is based on height and weight, is a measurement of body fat. It is calculated by dividing the kilogram weight by the square of the height. Adults have long used the BMI, an easy and inexpensive way of measuring body fatness, to check for weight-related problems.

Body composition is an assessment of each component of the body, comprising water, fat, muscle, and bone. Although measuring body composition is more costly and time-consuming than measuring body mass index (BMI), it is more accurate for identifying health hazards.

Using BMI to track weight loss


Here are some tips for using BMI to track weight loss:

  • Start by calculating your BMI. You can do this online or by using a BMI calculator.
  • Weigh yourself regularly, at least once a week.
  • Track your BMI and weight loss progress in a journal or on a spreadsheet.
  • Make sure to take your measurements under consistent conditions, such as at the same time of day and wearing the same type of clothing.
  • Be patient. It takes time to lose weight and see results.
  • Don’t get discouraged if you have a setback. Just pick yourself up and keep going.


The BMI is a helpful measure for identifying obesity in the general population. It’s crucial to keep in mind nonetheless that BMI is not an accurate gauge of body fatness or health risk. It is crucial to discuss your concerns with your doctor if you are worried about your weight or your health risks. In order to identify your unique risk for long-term diseases, your physician can evaluate your BMI, body composition, and other health indicators.


BMI stands for body mass index. It is a measure of body fat based on height and weight. BMI is calculated by dividing a person’s weight in kilograms by their height in meters squared.
  • Underweight: BMI < 18.5
  • Healthy weight: BMI 18.5-24.9
  • Overweight: BMI 25-29.9
  • Obese: BMI 30-34.9
  • Severely obese: BMI > 35
BMI = weight in kilograms / height in meters squared

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