Question

There is a range of body sizes that the BMI categorizes as underweight, normal, overweight, obese, and morbidly obese. Marilyn Wann, Sondra Solovay, and Linda Bacon all advocate “Health at Every Size” (HAES), which emphasizes self-acceptance, physical activity, and normalized eating rather than measuring health by a goal weight. Some argue that this suggests “fat acceptance”.

Answer 1

BMI=(body height in kilogram)/(body height in meter^2)

this number is not always same for a same individual in his/her hole life.More over evrey human should have some fat deposited under the skin layer(normal percentahe is for male 8-19% & for female 31-33%) which is also necessary.But at the same time too much fat is risky as it causes some serious diseases like high blood pressure,atheroscerosis. But individuals sometimes can live healthy life with little high percentage of fat in his/her body.

As a physiologist I prefer that we can have a little high percentage of fat in our body if all the systems(cardiovascular,liver & renal) works properly.But it is also true that excess amount of fat is responsible for Heart-related deathes.So if your body fat is not disturbing your systems(cardivascular,renal etc.) then you can have fat and don't  take any tension if you are not an atheletic and preparing for any tournament.