Re: JW's Weight Calculations ............ Was: Re: CRON sleep

[Guest guest]

The difference is I'm talking weight loss as opposed to fat loss. Weight is composed of mostly water, in the ratio of 6 oz of water is released for 100 kcals of glucose, I thought. I don't have a link except a note from Dr. . Here I see it's 4.6 oz water. So darn, I have to refigure my spreadsheet, except that 6 oz seemed to work pretty good. Anyway it's still weight loss which is mostly water.

"Lemeesee. 100 kcal/3.4 kcal/g = 29 grams carbohydrate (CH2O)n, or about an ounce. You get one water (18 daltons) for every (CH20) = 30 daltons, so you only get 18/30 * 29 = 17 grams or so of water released for every 100 kcal. Only 0.6 oz.More weight comes from the water of hydration for glycogen, which gets released the first day you starve, as you burn the glycogen to CO2 and H2O. But it's only 2 kg or so for 500 g of glycogen-- maybe 4 to 1 weight, at most. So you're still at no more than 4.6 oz water released for every 100 kcal carbohydrate burned. It isn't water you need, it's water that you "get".

Maybes someone could verify Dr. 's statement but I think it's just a science equation for the water required to "float" (metabolize) the carbos.

Regards. " <jwwright@...> wrote:> I recall you telling me (sci.med.nutrition) it takes 8 oz of water tometabolize 100 kcals of carbo and therefore 8 oz

Regards.

----- Original Message -----

From: Rodney

Sent: Wednesday, September 01, 2004 6:31 PM

Subject: [ ] JW's Weight Calculations ............ Was: Re: CRON sleep

Hi JW:I have been fascinated for a while with your calculations for weight loss, such as those in your post below. But I do not understand them. Would it be possible to explain a bit more, or provide a link so that I can understand it better? It is the part about 6 oz. of water per 100 kcal of glucose (and similar calculations for the other macronutrients?) that I find interesting.One particular detail I am confused about is that you seem to say that a deficit of 100 kcal per day for ten days amounts to 3.3 #. I assume your "#" means pounds?I have seen other sources suggest 3500 kcal per pound. Using the 3500 number: 10 days x 100 kcal/day = 1000 kcal / 3500 kcal/pound = 0.286 pounds. That is a lot different from 3.3, so what am I missing here?TIA.Rodney.