One limitation to the body mass index is that it does not differentiate between fat and lean body mass. For example, an athlete or bodybuilder with a large amount of muscle mass could very easily fall into the overweight or obese categories based on their BMI.Keeping this in consideration, what are the advantages and disadvantages of BMI?
Disadvantages: BMI Overestimates Risk for Some While BMI might underestimate the risk for people with normal weight but high body fat, it can overestimate the risk for muscular, healthy people.
Secondly, who should not use BMI? A person is considered underweight if the BMI is less than 18.5. As with most measures of health, BMI is not a perfect test. For example, results can be thrown off by pregnancy or high muscle mass, and it may not be a good measure of health for children or the elderly.
Beside above, why BMI is inaccurate and misleading?
BMI (body mass index), which is based on the height and weight of a person, is an inaccurate measure of body fat content and does not take into account muscle mass, bone density, overall body composition, and racial and sex differences, say researchers from the Perelman School of Medicine, University of Pennsylvania.
What factors affect BMI?
Factors such as age, sex, ethnicity, and muscle mass can influence the relationship between BMI and body fat. Also, BMI does not distinguish between excess fat, muscle, or bone mass, nor does it provide any indication of the distribution of fat among individuals.
How do you calculate BMI with height and weight?
Body Mass Index is a simple calculation using a person's height and weight. The formula is BMI = kg/m2 where kg is a person's weight in kilograms and m2 is their height in metres squared. A BMI of 25.0 or more is overweight, while the healthy range is 18.5 to 24.9.Is the BMI test valid?
But in recent years, more researchers argue that it's not the most accurate way to measure body weight. For years, scientists have said that BMI can't distinguish between fat and muscle, which tends to be heavier and can tip more toned individuals into overweight status, even if their fat levels are low.Is BMI affected by age?
For adults ages 20 years and older, BMI incorporates weight and height, but it does not take age or sex into account. A woman tends to have more body fat than a man with the same BMI. Likewise, an older person tends to have more body fat than a younger person with an equal BMI.What is a BMI chart?
Body Mass Index (BMI) is a person's weight in kilograms divided by the square of height in meters. A high BMI can be an indicator of high body fatness. BMI can be used to screen for weight categories that may lead to health problems but it is not diagnostic of the body fatness or health of an individual.What BMI should I aim for?
If your BMI is 19 to 24.9 kg/m2, you're are a healthy weight, and should aim to stay that way. A BMI of 25 to 29 kg/m2 is defined as overweight. A BMI of over 30 kg/m2 is defined as obese and means your health is at risk. Losing weight will improve your health.Does body frame affect BMI?
Body frame size is not used when calculating BMI; instead, you can figure out your BMI using your height and weight. The BMI measurement does not take into account body composition or sex differences, so its accuracy is debatable.What is better than BMI?
One of the most effective alternatives to BMI is the old fashioned tape measure. By measuring the natural waist you can get a good indication of the amount of abdominal fat you are carrying. Knowing the circumference of your waist can help determine your risk of getting heart disease and other medical conditions.How can BMI be calculated?
The formula for BMI is weight in kilograms divided by height in meters squared. If height has been measured in centimeters, divide by 100 to convert this to meters. When using English measurements, pounds should be divided by inches squared. This should then be multiplied by 703 to convert from lbs/inches2 to kg/m2.Does BMI really mean anything?
A high BMI does not mean an individual is even overweight, let alone obese. It could mean the person is fit and healthy, with very little fat.How accurate is BMI chart?
The team of researchers behind RFM say it's more accurate than BMI, and it can also be worked out with just a tape measure – so you don't need a set of scales to calculate it, as you do with BMI. This figure can then be compared against a chart of healthy weights for each height: a normal BMI is between 18.5 and 25.Why do doctors still use BMI?
The body mass index (BMI) has long been used as a way to judge one's health. This is a (potentially huge) problem, because BMI is used in doctor's offices everywhere as a way to classify patients as normal weight (read: healthy) versus underweight, overweight, obese, and so on (read: not healthy).How can u tell if ur fat?
A BMI number is designed to give you an idea of how much body fat you have as a ratio of your weight to height. It's measured by taking your weight in kilograms and dividing it by your height in meters squared. A reading at or over 30 means you're obese. A reading at or over 40 is severe obesity.What should my waist size be?
For your best health, your waist should be less than 40 inches around for men, and less than 35 inches for women. If it's larger than that, you may want to talk with your doctor about what your next steps are, including losing weight. You can't spot-reduce your waist, or any other part of your body.Why is BMI not a good health indicator?
While it's a simple and useful screening tool when looking at groups of people, it's not an accurate marker of individual health. This is because BMI is a measure of our height and our weight, and the ratios of their combination.When was the BMI chart last updated?
In 1985 the National Institutes of Health (NIH) consensus conference recommended that overweight BMI be set at a BMI of 27.8 for men and 27.3 for women. In 1998 a NIH report concluded that a BMI over 25 is overweight and a BMI over 30 is obese.What is visceral fat in human body?
Visceral fat is body fat that is stored within the abdominal cavity and is therefore stored around a number of important internal organs such as the liver, pancreas and intestines. Storing higher amounts of visceral fat is associated with increased risks of a number of health problems including type 2 diabetes.What is the correct BMI for my age?
A BMI of less than 18.5 means that a person is underweight. A BMI of between 18.5 and 24.9 is ideal. A BMI of between 25 and 29.9 is overweight. A BMI over 30 indicates obesity. 
