Pyloric Valve 101-repost of repost of repost

on 8/12/12 3:50 pm
Seems every few months I read of people not knowing how important this function is to your post VSG lifestyle......

Understand what it is and how to make it work for you !

The Pyloric Valve.....the most not talked about function that will answer a lot of questions.

If you understand the Pyloric Valve function......things will be a lot easier and explain why we need to do certain things.......


First, I’m not a doctor nor have I ever played one on TV.

This is a level one explanation.....there is more to it....but if you understand will make some sense.

This may be old news to some..... But I’ve noticed a lot of people who have had VSG do not have any idea how the Pyloric Valve works.

This is my understanding how the Pyloric Valve works.

The Pyloric Valve function and how it pertains to your VSG.

The function of your Pyloric valve is the single most not talked about important part of understanding how and when you should eat and drink.

The Pyloric Valve is just that....It is a valve that is located at the bottom of your stomach/sleeve. This valve is in between your sleeve and the small intestine. The basic definition of a valve is an apparatus that opens and closes.

When open this valve it is about the diameter of a dime. When closed it’s opening is closed down to the diameter of the head of a ballpoint pen.

Dense proteins and harder to digest foods will cause the Pyloric valve to close to hold the food in your stomach for pre-digestion...... stomach acids breaking down this “RoughÂ" food. 

That’s why we are told to eat dense proteins first.....To close the Pyloric Valve so food stays in your stomach/sleeve longer so we have a sense of satisfaction.

It takes about 30-60 minutes for the food to clear the Pyloric Valve...... Than it’s OK to drink.

That is also where the term slider food  comes into play. A slider food does not close the Pyloric Valve and as the term is slides right past an open Pyloric Valve.

So now the other half of the Pyloric Valve function..... You eat a dense protein like chicken that causes your Pyloric Valve to close. Say for example your sleeve has a 4oz. capacity.....and you eat 4oz. of chicken.....your sleeve is full and holding all 4 oz. of chicken for pre-digestion because your Pyloric Valve is closed. 

So now try and drink something....where is it gonna go? Up.....Up until it hits another valve of sorts..... the Esophageal Sphincter (valve) and above that is a flapper valve. The function of these two valves is to hold food, bile and stomach acids in your stomach and not backing up into your air way. This is a very high pressure system. Thats why when you eat to much or drink after eating a hard to digest food and your Pyloric is closed.....It hurts cause you pressurized your intake track. Vomiting would be a natural pressure release.

So you can see how learning and understanding how the Pyloric Valve works is important as it pertains to eating and drinking with a Gastric Sleeve.

So that was kinda like VSG and the Pyloric Valve 101

As you get further a long you will want to use the Pyloric Valve in other ways to keep food in your sleeve longer to stay satisfied longer. 

A sleeve empties faster than a stock un altered full size stomach so sometimes it’s beneficial for you to learn what foods stay in your sleeve longer to extend satisfaction.

Dense proteins are #1 in closing the Pyloric Valve. Chicken, steak, pork, that order seems to be the way it goes for me.

Other foods that are hard to digest and help close the Pyloric Valve are foods like:

  • Broccoli Stalk
  • Asparagus
  • Celery
  • Cucumber with Skin
  • Radish
  • Cabbage (I’m testing this right now)
  • Bell Pepper

So I hope you understand my 5 cent tour of the Pyloric Valve and how it effects the way we eat with a VSG and how important it is to work the Pyloric Valve to your benefit.


SW 338lbs. GW 175lbs. Goal in 11 months. CW 148lbs. WL 190lbs.

          " To eat is a necessity, but to eat intelligently is an art "

                                      VSG Maintenance Group Forum

                                           CAFE FRISCO at

                                                      Dr. Paul Cirangle

on 8/12/12 3:56 pm

Fantastic post, thanks so much 5 days post op and this info is great to know.....:)

on 8/12/12 4:05 pm
VSG on 06/27/12
 I bookmarked this the last time you posted and just read it again the other day!  Thank you  for posting!


on 8/12/12 4:14 pm - Franklin, KY
VSG on 08/15/12
Thanks for posting this!! Makes perfect sense!

DOS: 8/15/12

Sheryl G.
on 8/12/12 4:21 pm - IL
VSG on 09/17/12
It's like a lightbulb going off in my head! I hope you never tire of educating all of us pre-ops! This simple explanation is just what my "can't-wrap-my-head-around-a-lot-of-this-VSG-stuff" mind needed! Thanks!
on 8/12/12 4:24 pm - Santa Rosa, CA
 Thanks Frisco. I'm not a newbie nor am I a vet, but each time I see this it serves as a great reminder of how to eat. Thank you!

HW: 284: SW: 274: CW: 152.8. Goal: 159  

on 8/12/12 4:25 pm - Sunny Southern CA, CA
VSG on 09/14/12
 GREAT post!!!!! thank you! 
pics of my trip:              
(deactivated member)
on 8/12/12 4:35 pm
Nodding in agreement as I finished up my afternoon ounce of beef jerky to hold me over until dinner time! 
on 8/12/12 4:40 pm - IN
thank you very much; great info



on 8/12/12 4:46 pm
VSG on 04/23/12

I had to copy and paste to my page so I wouldn't forget this time! I'm 3.5mos Post-op Thanks for re-posting every once in a while!! I think my brain is shrinking as well...


(VSG)  HW, 346 SW, 341 CW 176.2 GW, 165  kiss

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