Why BMI isn’t the best measure for weight or health?

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.

Why is BMI not a good health indicator?

BMI is a simple indicator of weight for height and can’t differentiate between muscle mass and fat mass. So BMI tends to overestimate the health risk for adults with a high muscle mass, such as some athletes, and underestimate the risk for adults with a low muscle mass, as can occur with sedentary lifestyles.

Which is more accurate BMI or body fat?

Body fat percentage distinguishes fat from muscle and calculates the percentage of body fat in the body. While BMI is a rough estimate of body fat, body fat percentage is a more accurate number.

What is more important BMI or weight?

Answer: BMI is more helpful than weight in assessing degree of overweight. BMI is a measure of weight for height. It stands for body mass index.

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Is BMI a good health indicator?

BMI is a useful indicator of health at the population level. However, the distribution of fat on your body is more important that the amount, when assessing your disease risk. For this reason, your waist circumference is thought to be a better predictor of health risk than your BMI.

Why do doctors still use BMI?

Body Mass Index Is a Good Gauge of Body Fat

The most basic definition of overweight and obesity is having too much body fat-so much so that it “presents a risk to health.” (1) A reliable way to determine whether a person has too much body fat is to calculate the ratio of their weight to their height squared.

Is 30 percent body fat bad?

Normal body fat percent for women is 20 to 30 (for men it is lower). In women, below 17 is extreme low body fat; between 30 to 33, high body fat; and above 34, extremely high body fat or obese. The recommended healthy body fat percentiles increase slightly with age.

What is the healthiest body fat percentage?

With that in mind, think of BMI and body fat percentage as just one way to assess and monitor your weight and overall body composition.

Ideal body fat percentage for women.CategoryPercentageEssential fat10-13%Athletes14-20%Fitness21-24%Acceptable25-31%Ещё 1 строка

What is a good BMI percentage?

The higher the BMI, the greater the risk of developing additional health problems. A healthy weight is considered to be a BMI of 24 or less. A BMI of 25 to 29.9 is considered overweight. A BMI of 30 and above is considered obese.

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What is the best BMI for a woman?

Doctors consider a healthy BMI for women to be 18.5–24.9. A BMI of 30 or above may indicate obesity. BMI measurements can help someone understand whether they have underweight or overweight.

Why is my BMI so high?

Muscles are denser and heavier than body fat, so if you have high muscle mass, your BMI might indicate that you’re overweight or obese. BMI treats a person’s weight as one entity, instead of accounting for muscles, bone density and fat, which all make up a person’s weight.

What can I use instead of BMI?

Better than BMI: 4 ways to track your health besides the scale

  • Waist-to-height ratio (WHtR) The cousin of the BMI, waist-to-height ratio compares — you guessed it — waist circumference to height, rather than overall weight to height squared. …
  • Measurements. …
  • Resting heart rate (RHR) …
  • Skinfold Calipers.

Is a BMI of 17.5 bad?

The American Dietetic Association (ADA) defines the ideal body mass index (BMI) as between 20 and 25. Thus, anyone below that range would be considered underweight and those with a BMI from 18.5 to 17.5 extremely underweight.

What is my ideal weight and BMI?

Weight: Your BMI is , indicating your weight is in the category for adults of your height. For your height, a normal weight range would be from to pounds.

Adult BMI Calculator.BMIWeight StatusBelow 18.5Underweight18.5—24.9Normal25.0—29.9Overweight30.0 and AboveObese

Is BMI accurate if you are muscular?

Crucially, BMI doesn’t distinguish between fat and muscle and studies have found it unreliable.

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