A bodybuilder who is 221 lbs and 6 ft. tall will have a BMI of 28. A person who doesn’t exercise weighs 203 lbs and is 6 ft. tall, and he will have a BMI of 27. So a bodybuilder may be deemed as overweight or obese because of their height to weight ratio. While their heights are the same and their weight is similar, they will not be of the same health. Therefore, there are times that BMI is not accurate.
While it is possible to be healthy and overweight, being overweight or obese still holds more risk to certain illnesses and conditions.
Other than the fat to muscle ratio being unclear when it comes to body mass index, BMI also cannot distinguish whether a person is healthy or not.
While it is possible to be healthy and overweight, being overweight still holds more risk to certain illnesses and conditions.
Additionally, BMI can over- or underestimate adiposity. For instance, one study showed that women who had a spinal cord injury and used the BMI calculation found that it had limited use for them. That is because BMI underestimated adiposity for women with their injury.
Another point to note is that the body mass index may not be as helpful when determining what the normal weight to height ratio is for different races and ethnic groups. For instance, some people of Asian ethnicity tend to have smaller frames than Western people. So, a slim Asian woman may be deemed as underweight, despite being healthy and normal.
As stated earlier, measurements can be helpful and can complement the body mass index. A few scientists say that using the waist to height ratio is better and easier than solely using the body mass index calculator. It can be helpful because people who have fat around their abdomens have higher risks of metabolic disorders and heart disease.
Another study states that waist circumference can also indicate whether a person has a higher risk of getting heart disease and type 2 diabetes. That study was proven true by the authors even after they had accounted for people’s BMI.
The new BMI calculator