This used to always confuse me too. I'd do the math and figure out what weight I need to cut to in order to reach my goal bodyfat%.
Then you start dieting and the BIA will jump up! And you realize very quickly that you need to reach a lower bodyweight than you thought in order to hit your goal. But then you'll refeed and look good at a higher weight than you need to diet down to.
Example: You start at 180 and conclude you'll be lean at 160 based on the math. You really need to diet down to 150-155. Then refeed and look good at 155-160.
This all assuming your initial bodyfat estimate was solid. Most people tend to underestimate how fat they are
My Wild Ride to A great body in my 30s.
Thank you Lyle. This website is a game changer once you understand the mechanisms behind fat loss/muscle gain.
Spun my wheels for years prior to finding this site.