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How many cups of food can a Roux-en-Y gastric bypass patient eat two years after surgery?
Asked by pretty_fluffy on Mar 22, 2008 in Health Conditions

I am two years post-op and have been struggling for the past 6-months to stop losing weight.  I am 5'9" and 120-lbs (give or take 1-lb either way.)  I have finally been maintaining for about 2-months and I just want to make sure I am eating enough.  I can eat 1-cup of solid food at a time and 1-1/2 cups of soups and more liquid stuff.  Salads - about 2-cups at a time. Then I can't eat again for at least about 5-hrs. I still do not ever get hungry, even when I forget to eat for an entire day. I feel good, I have energy and I am getting about 75-grams of protein and  25-grams of fiber a day. I'm also taking all my supplements still.  I average about 1200-calories a day, including beverages, sugar free candy, meals, etc....  I have had no insurance for the past 1-1/2 yrs, so I have not been able to confer with either my surgeon or a dietitian.


Two years after Roux-en-Y gastric bypass surgery, most people can eat 1 to 1 1/4 cups of solid food, and except for your salad portion, that describes you.  You probably already know enough to drink in-between, not with, meals and to avoid high sugar foods to prevent dumping syndrome.  Plan to eat three meals a day, or once every 5 hours, whether or not you feel hungry. 

A doctor should evaluate your weight loss and poor appetite.  A condition called small intestinal bacterial overgrowth (SIBO) is common after gastric bypass surgery.  SIBO interferes with the absorption of vitamin B12, iron, calcium, and zinc, which can cause poor weight gain and a decrease in appetite.  Routine vitamin supplements are not sufficient to prevent nutrient deficiencies from SIBO.  If you live near a university hospital, call to see if they have an affordable gastroenterology clinic. 

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