Lean Mass Vs Body Fat

[Dom02110]

Hi guys I wanted to know if losing body fat increase my lean mass because it's getting confusing it says I lost 13.1 pounds in 2 weeks starting weigh 306.3 BF 138.4pounds LM 167.9pounds now I'm 293.3 BF 98.4pounds LM 194.4pounds.... I don't get how this works please help me

[Dominique]

I assume lean mass vs. fat mass was estimated (stress on estimated) with a BIA scale. If so, it is important to realize BIA has known limitations (in particular, it is very sensitive to hydration). Also, two weeks is a very short period: you should really look at trends over much longer periods (e.g. several months). While it is possible to gain lean mass and lose fat at the time (under some special conditions), it is very unlikely that you would have lost 40 pounds of fat and gained 26.5 pounds of lean mass in just two weeks.

Congrats for your great start, focus on adopting good lifestyle habits and losing at a sustainable pace!

[Dom02110]

Well my aria 2 scale tells me that that on the app..but is it possible it say my body fat % went from 45 to 36 to 33.5 I think the 45 was wrong but I was 295.9 with 36%  now I'm 293.3  with 33.5% body fat is it possible to lose that much bf% in that short time 

[Esya]

I just ran your numbers through excel and I would say it is not likely.

You lost 2.6 pounds going from 295.9 to 293.3.

If you calculate the amount of fat using the bf% for each weight, you would have lost close to 8.3 pounds of fat (from 106.5 to 98.3).

In a short time you can gain some muscle, but not crazy much.

[Dom02110]

Thanks just trying to figure out how accurate the aria 2 scale is 

[Esya]

The link in @Dominique his post takes you to a wiki page that explains how the scale works and you can also google the bioelectrical impedance method. I would suggest to not look so much at the short term changes. You can get an account at trendweight for free and link your FitBit account to it. It will show a trendline which is really good information to have over a longer period of time, ignoring more of the short term ups and downs.

[Dom02110]

Okay thanks