Question:
Does anyone know or know where to find info on how much you absorb after rny???

   — Lisa B. (posted on March 23, 2001)

March 23, 2001
Hi I just asked my nutritionist that and she said that there is no way really of knowing. Kinda makes sense. I do know that is does depend upon how much intestine is bypassed.
   — Jeannet

March 23, 2001
How much you absorb of WHAT? Of sugar, 100%. Of protein, iron, calcium, A, D, E (& therefore your fats 'n oils), zinc and B12? Only a portion, as they (and their calories) are lost with the lower stomach. I said THEY, but of course, I mean a portion. And that portion will be as variable as each person's own intestinal make up combined with the surgery they've been given. I count 0 absorption on those items and supplement them fully. I get labs frequently to monitor what I'm getting. Easier to adjust up or down than it is to rebuild from nothin'.
   — vitalady