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.
Is BMI wrong if you are muscular?
Your muscle mass makes up most of your weight
BMI doesn’t account for body composition, which means it misses the difference between muscle mass and fat. … Someone who has a high BMI due to muscle mass most likely doesn’t need to worry about the health problems associated with obesity and being overweight.
Am I overweight if I have muscle?
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.
Why is my BMI so high but not fat?
Athletes and heavily muscled people may have a high BMI but very little fat (Given an equal volume, muscle weighs more than fat on the scale). To prevent being misclassified based on BMI, some people prefer to have their body fat measured at the gym or their doctor’s office.
Why am I overweight but don’t look it?
While it’s a myth that muscle weighs more than fat—after all, a pound is a pound—it is denser, which means it takes up less space in the body. This may explain why you look slimmer but the scale hasn’t budged.
How much should I weigh with muscle?
If you’re 5 feet, 5 inches, then your ideal weight is 160 pounds. If you’re 5 feet, 6 inches it is 165 pounds. The ideal weight for someone 5 feet, 7 inches is 170 pounds and for 5 feet, 8 inches it is 175 pounds. Ideal weight increases by five pounds per inch until you get to 5 feet, 11 inches.
What’s more accurate than BMI?
While BMI is a rough estimate of body fat, body fat percentage is a more accurate number. BMI, but not overfat. Likewise, a person of normal weight on the BMI scales may still be overfat and at risk of weight-related diseases.