ExpertKipWatcher wrote:
BigBoy wrote:BMI is inaccurate, as it shows my body fat % to be 23.1 and is nearing the "overweight" range which is ludicrous.
You don't understand what BMI is, the healthy range 18.5 to 25 which you are in is not measuring body fat, this is purely a number resulting from the division of weight by height squared (in metric). BMI is simply a weight range for a given height expressed as a formula.
BMI is meant for populations, not individuals. It is a fair comparison to make a USA map of states and show BMI per state and conclude the south has more obesity than the north. That's easier than having four sets of heights and weights to compare two states, men/women for each state. Only with populations can you average out the variables.
With individuals, there are so many variables it's not even worth using. You have almost as much chance of a fit person being out of range as in range. Being over 6'1" or under 5'2" distorts the scale. There's no provision for fat distribution, age, sex, bone structure. It measures all 5'9" people the same; you could find a thin-framed 120 lbs young woman and a big-boned middle-age 170 lbs man, both healthy, yet outside the "normal" range. Even moderate muscle affects the scale, and some people who do a lot of lifting will be way outside (I am 29 BMI by default despite being otherwise healthy— or 30 dressed for winter after a good meal). BMI over 35 or under 15 is certainly a problem. But closer to normal ranges, you really can't infer anything.
Some clinicians understand this and look at the bigger picture. Unfortunately, some of them put too much into the BMI number. BMI gets misused a lot, though fortunately not in this thread so far. Be wary of it.