Setpoint is another term thrown around a lot in the weight loss world. I agree with this guy. Our setpoint can be within a range depending on the lifestyle we have chosen.
I have told people at times when they are very small and are having trouble maintaining such a low weight that if they have to fight to stay there perhaps they have chosen a number that is too low for them. We can certainly go too low for health. Look at the models. Those clothes might as well be on a hanger.
How do we determine a healthy weight for us? The height and weight charts? The Army has to waive its weight requirements for my son Nathan due to his muscle. He is out of the weight range for his height. The muscle weighs more than fat argument works here but like this - if we would take a cubic foot of fat and a cubic foot of muscle the muscle would weigh more than the fat. I think Nathan is 17% body fat.
There are people who are at a normal weight and they don't even know it or care about it. They intuitively know when to eat and when to stop eating. They don't pay attention to what they eat. If pizza sounds good, that's what they have. If a salad sounds good, they have that. Many of them never weigh themselves. I am not anticipating being like that.
I think most of us know the weight that is right for us. It is not based on a chart. We have been at that weight, felt good, and looked good.
That's our setpoint.