A while back someone posted a link to a site with a Calorie Counter. It also has several others things on that site. One of them is about the fullness factor. I haven't been thru the whole thing but it looks interesting so here is the link:

http://www.nutritiondata.com/fullness-factor.html

This message has been edited. Last edited by: BrenauMom,

I don't know about their specific formula, but think the general concept is sound.