Fat as Proportion of Weight Lost

[Guest guest]

Hi folks:

Further to this issue, it occurs to me that this can be calculated

(maybe) from the WUSTL data. Unfortunately, they do not give weight

and BF% for the subjects for both pre-CR and at established CR weight.

But they do give data for the subjects at CR weight and for the

controls, who are supposed to represent pre-CR. If the controls are

a good sample, representative of the CR subjects before they started

CR, then we can calculate what proportion of the weight that was lost

by the WUSTL CR subjects was fat (and how much was LBM).

The number based on those data is that 66% was fat; 34% LBM. Since

it seems I have lost about 80% fat so far, this does suggest the

proportion of fat lost will decline as fat reserves decline, as Tony

had suggested. I will have a reasonably decent number for myself

when I eventually get down to established CR weight, which likely

will not be for another twelve months.

The number for 'percentage of weight lost that is fat' is important

if one wishes to figure out ahead of time what one's weight will be

at whatever body fat number one is aiming for. (It cannot be

calculated without it). In my case, using the 66% number, after

starting at what I used to believe was my ideal weight of 172 pounds

(WC/H = 0.50; BF% = 20.4) ............. at 10% body fat I will

weigh ~139 pounds; and at 7% BF about 132 pounds. Difficult to

believe. I haven't weighed that much since I was 14!

Rodney.