Guest guest Posted October 29, 2001 Report Share Posted October 29, 2001 At 3:45 PM +0000 10/29/01, soozyl101@... wrote: >Hi all, >Does anyone know about or have ever heard approximately how many >calories we absorb postop (DS) vs. how many we actually consume? Say >for instance if I consume 800 calories a day, I know I wont absorb >them all.. maybe 1/2 or 3/4? So that then means that its the same as >consuming 400 to 600 instead? I'd love to hear your thoughts on this. Sue, There is a lot of " lore " to the effect that we absorb somewhere in the neighborhood of 30% of the fats, 80 % of the protein, and 100% of the SIMPLE carbs (maybe less of the complex carbs). Since fat has more than twice the caloric density of protein or carbohydrates, (9 cal/g as opposed to 4 cal.g), the 30% nominal absorption of fats makes them no worse for our weight control than protein or carbs. But, I have seen different stories with quite a bit of variation. (Add a Krispy Kreme or your favorite greasy treat to flush out the digestive system, and maybe we absorb even less --HAH!) So, the answer to your 800 calories/day (which is frightfully low for a DS post-op, by the way!!) depends on the relative proportion of carbs, proteins and fats. For example, 300 cal of protein, 300 cal of fat, and 200 cal of carbs would yield about 240 + 100 + 200 calories, or about 540 calories in all. YMMV, Steve -- Steve Goldstein, age 61 Lap BPD/DS on May 2, 2001 Dr. Elariny, INOVA Fairfax Hospital, Virginia Starting (05/02/01) BMI = 51 BMI on 10/25 = 39 (-75 lb.) -- No longer M.O. Losing more slowly than most, but enjoying renewed health and life in general. Quote Link to comment Share on other sites More sharing options...
Guest guest Posted October 29, 2001 Report Share Posted October 29, 2001 Morning Sue, I asked that exact question of Dr. Rabkin at his seminar because I had seen so many percentages of malabsorption thrown about. His answer was very interesting. He said, " NO ONE KNOWS " . No one knows because no scientific study has ever been done. He said the evidence of fat malabsorption is in the well, the pooping...so one can see that. Also, the proof is in the pudding in the fact that when caloric intake increases, there is no or not a substantial weight gain. I asked him specifically that I had seen that there is 80% or 60% malabsorption of fats, a slightly higher absorption of carbos and total absorption of sugars, and he was quite amused by this. Oh, by the way, Dr. Rabkin is vehement that no sugar be ingested during the window of opportunity. Now I have scoured everything I can find, and I cannot find one study that indicates rate of malabsorption. Also, we do know that the DS is putting Diabetes into remission within weeks of the surgery, before any weight loss could impact the disease. So, although there are no studies explaining the mechanism, there is the proof of it happening! How's that for no information??? Hugs, theresa > Hi all, > Does anyone know about or have ever heard approximately how many > calories we absorb postop (DS) vs. how many we actually consume? Say > for instance if I consume 800 calories a day, I know I wont absorb > them all.. maybe 1/2 or 3/4? So that then means that its the same as > consuming 400 to 600 instead? I'd love to hear your thoughts on this. > Love, > Sue > Post op 9/11/01 > Dr. Warden > Ocean Sps, MS Quote Link to comment Share on other sites More sharing options...
Guest guest Posted October 29, 2001 Report Share Posted October 29, 2001 Sue...... Dr Welker said by the time you are a year out you should be eating 2500 calories a day and only absorbing half of that! Judie Quote Link to comment Share on other sites More sharing options...
Guest guest Posted October 29, 2001 Report Share Posted October 29, 2001 Yes .....right from the horses mouth! He not only told us that at one support group meeting but told both Mike and I the same thing during our pre opt testing when we signed the papers to go ahead with it. We had been discussing how eating would change by one year out..... Judie Quote Link to comment Share on other sites More sharing options...
Guest guest Posted October 29, 2001 Report Share Posted October 29, 2001 could check with your Doc and ask him what he bases that opinion on, please? Thanks and Hugs, Theresa>>>> done Theresa......will let you know as soon as I hear from him Judie Quote Link to comment Share on other sites More sharing options...
Guest guest Posted October 29, 2001 Report Share Posted October 29, 2001 Thanks Girlfriend, As always, you are the best! Hugs, Theresa > could check with your Doc and ask him what he bases that > opinion on, please? > > Thanks and Hugs, > Theresa>>>> > > done Theresa......will let you know as soon as I hear from him > > Judie Quote Link to comment Share on other sites More sharing options...
Guest guest Posted October 29, 2001 Report Share Posted October 29, 2001 Wow Judie.. wish I could eat that much.. trying to work up to it..lol.. your menu is right up my alley.. Ive always been 'half baked' lololol!! Love, Sue > Hey Sue! > Remember, with the DS you do NOT count calories anymore! Those days are > gone forever. (If you had the RNY then yes, you should be quaking over the > calories lol) > Today we are going to town so will have a large chef salad LOADED with > turkey, roast beef, ham and 3 different cheeses with thousand island > dressing and sunflower seeds and croutons.....and before I hit the lettuce I > will have all the protein out of the way.......before surgery I would have > to count those calories in order to get anywhere diet wise! > Then tonight its fillet mignon.......with half baked potato and butter and > sour cream with chives and some broccoli..... > doesnt get much better than this! > Yes! 2500 calories a day and absorbing half of that! Im already there! > > Hugs, Judie Quote Link to comment Share on other sites More sharing options...
Guest guest Posted October 29, 2001 Report Share Posted October 29, 2001 You've got it Theresa!! lolol!! > > > > Hi all, > > > > Does anyone know about or have ever heard approximately how > many > > > > calories we absorb postop (DS) vs. how many we actually > consume? > > > Say > > > > for instance if I consume 800 calories a day, I know I wont > absorb > > > > them all.. maybe 1/2 or 3/4? So that then means that its the > same > > > as > > > > consuming 400 to 600 instead? I'd love to hear your thoughts on > > > this. > > > > Love, > > > > Sue > > > > Post op 9/11/01 > > > > Dr. Warden > > > > Ocean Sps, MS Quote Link to comment Share on other sites More sharing options...
Guest guest Posted October 31, 2001 Report Share Posted October 31, 2001 > I asked that exact question of Dr. Rabkin at his seminar because I > had seen so many percentages of malabsorption thrown about. His > answer was very interesting. He said, " NO ONE KNOWS " . Thank you, Theresa! LOL. I have also found it amusing when people give exact percentages of absorption, since I have never, ever read any study to back up these statements. But as you said (sort of) the proof is in the pooping. Dr. Scopinaro did do some studies on his BPD patients and found that there is an apparent maximum absorption rate. Look under the " WEIGHT MAINTENANCE " at the following URL: and you can read about it: http://www.duodenalswitch.com/Procedure/1998BPD/1998bpd.html#7 Read that section. It's long and dry to read, but the text and the tables illustrate clearly how this procedure works and works well, and is not easy to defeat. M. --- in Valrico, FL, age 39 Lap DGB/DS by Dr. Rabkin 10/19/99 Starting weight 299, now 155 Starting BMI 49.7, now 25.8 Starting size 26/28, now 10/12 http://www.duodenalswitch.com/Patients/_M_/melanie_m_.html Direct replies: mailto:melanie@... _________________________________________________________ Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.