Fat, muscle or water loss?

[SaraLee315]

If a person loses 10p of body fat ( measured with clippers). But has 2.97 p on top of that lost, where is the 2.97 loss comming from? Can it be water sine I'm assuming less weight mean your body doesn't need as much water or is it muscle loss?

[Cytrainer913]

usually that would be about 3 lbs of muscle lost if you were to use the %'s!

if a person was 200 lbs and was 20% bodyfat= 40 lbs of fat 160 lean tissue
now weighs in at 180 with 15% bodyfat= 27 lbs of fat 153 lean tissue

this person lost 13 lbs of fat and lost 7 lbs of lean mass as well.

[emccall3]

It is most likely a mix. Since muscles are made up of mostly water unlike your fat cells, when you are dehydrated you indeed do have less muscle in terms of "weight." Your caliper folds shouldn't change hardly at all based on your hydration level so you can probably assume that if you went out and ate a cheeseburger, while your weight would jump a couple pounds, your folds will not change so rapidly thus your bf% would change based upon your weight change, aka water weight in the muscle.