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Doctor insights on: List Of Foods After Gastric Bypass Surgery

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How come digestive enzymes are reduced after gastric bypass surgery?

How come digestive enzymes are reduced after gastric bypass surgery?

Loss of physiology: Food normally is mixed with acid and mechanically broken down in the upper stomach. Small amounts are released through the antrum of the stomach, which goes through the duodenum and proximal jejunum. Various substances stimulate secretion of gut hormones and enzymes. In gastric bypass operations, the antrum, duodenum and proximal jejunum are bypassed and reduce levels of these hormones. ...Read more

Dr. Gregg Nishi
472 doctors shared insights

Gastric Bypass Surgery (Definition)

Gastric bypass surgery is a restrictive and malabsorptive procedure to help lose weight. Restrictive is in the fact that the stomach is down sized to a 2 oz pouch and malabsorptive is in bypassing part of the stomach and 100 to 150 cm of the small ...Read more


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Nutritional ramifications and gastric bypass surgery? What are the nutritional ramifications to gastric bypass surgery? What vitamins can't be absorbed?

Nutritional ramifications and gastric bypass surgery? What are the nutritional ramifications to gastric bypass surgery? What vitamins can't be absorbed?

There : There are many nutritional changes after bypass surgery and they can vary depending on type of bypass or band. If you are thinking of undergoing bypass surgery be sure that wherever you are thinking of having the procedure preformed there is a nutritionist as they will be an important part of your medical team. Usually, immediately following surgery, there will be strict guidelines for how much and what types of food to eat. These will loosen over time. It is important to remember that you can still gain weight and have your bypass fail if you continue with poor eating habits. While you will feel full after little food you can stretch the pouch. Avoid foods with high fat and sugar content. Remember at first to eat very slowly, stop when full, chew food well, and concentrate on protein and hydration. Over time, months, you will most likely be able to eat all the foods you used to, but much less. Most often people will eat three, small, well chewed meals per day. Because of changes in gastric acidity and the new structuring of the intestine after roux-en-y gastric bypass the absorption of several micronutrients may be affected; b12, calcium, vitamin d, folate, iron, and thiamine to name a few. Your physician will usually do blood tests at 3 months, 6 months, and then yearly to follow lipid levels, iron levels, B12 and folate levels, calcium, vitamin d and parathyroid hormone levels, and your blood count. Most recommend taking a multivitamin with minerals and iron daily, and a B12 supplement (may be oral or injected). If your iron level is low you may be instructed to take a supplement --only do this if your level is low. You may also need additional calcium or vitamin d depending on your lab work. Patients undergoing lap banding may only need a multivitamin. Above all remember to work closely with your doctor and nutritionist. Weight loss surgery takes a lifelong commitment to be successful. ...Read more

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Why no alcohol after gastric bypass surgery?

Why no alcohol after gastric bypass surgery?

Alcohol ; bypass: You can have alcohol after a bypass but in moderation. Keep in mind that sweet drinks can cause dumping syndrome. Also, your tolerance will be much less than before so be careful. Lastly, alcoholic drinks (like beer and wine) can contain a lot of calories and you can gain weight from drinking too much. ...Read more

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Can you avoid complications after gastric bypass surgery?

Can you avoid complications after gastric bypass surgery?

Nothing's perfect.: You can minimize the chances of surgery by picking an experienced surgeon and losing weight before your operation as best you can. But surgery is imperfect and you can't completely eliminate risk. ...Read more

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What are the problems after gastric sleeve surgery, help!?

What are the problems after gastric sleeve surgery, help!?

Several things: Laparoscopic sleeve gastrectomy a surgical weight-loss procedure in which the stomach is reduced to about 25% of its original size. LSG has been reported to increase the risk of new onset gastroesophageal reflux disease (GERD) by altering the normal position of the sphincter at the gastroesophageal junction or in some cases, having the sleeve migrate into the chest. It is still safer than bypass ...Read more

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How are gastric band operation and gastric bypass different?

How are gastric band operation and gastric bypass different?

Weight loss: The band is placed around the upper part of the stomach to restrict the amount of food you can consume. It is adjustable depending on the amount of food you can eat and weight loss. The bypass permanently changes the anatomy by re-routing the intestines. The sleeve gastrectomy permanently changes the size of the stomach. All work well for the right people. ...Read more

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How are lap band and gastric bypass surgery different?

How are lap band and gastric bypass surgery different?

Malabsorption: The lap band is a device placed to make the stomach seem smaller thus allowing you to eat less and feel satisfied. With the bypass, a surgeon creates a smaller stomach by cutting which has a similar effect. Additionally, the intestines are cut and rerouted so that the upper segment is "bypassed". This decreases the absorption of food which leads to faster and relatively easier weight loss. ...Read more

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What are the risk having gastric bypass surgery after having a nissen for gerd?

What are the risk having gastric bypass surgery after having a nissen for gerd?

Bypass & Nissen : Doing a bypass after having a nissen is very difficult and considered revisional surgery. Lots of scar tissue from the nissen and your wrap must be undone. Risks of complications like a leak are much higher. Doesn't mean you shouldn't have a bypass. I have done many of these. You just need to go to an experienced surgeon that does revisional bypass surgery. ...Read more

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What are the blood testing procedures before gastric bypass/ any surgery?

What are the blood testing procedures before gastric bypass/ any surgery?

Pre op labs: Blood tests before surgery are basically safety checks. A hematocrit, white cell count, platelet count and electrolyte panel give a lot of information to the surgery team about how the patient's organs are functioning. Surgery and recovery are hard work for the organs, so any dysfunction (yet without symptoms) is important to know. ...Read more

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Can gastric dumping syndrome occur in a person with no prior gastric bypass surgery?

Can gastric dumping syndrome occur in a person with no prior gastric bypass surgery?

Dumping: No, not really. There are a very small percentage of people that will get post prandial hypoglycemia, but that only gives you some of the symptoms of dumping. With dumping, you can also get diarrhea, a stomach ache, nausea. There are people that have these symptoms and who have irritable bowel syndrome, but this is different than dumping syndrome that people get after a bypass. ...Read more

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How is the gastric sleeve and the gastric bypass procedure done?

How is the gastric sleeve and the gastric bypass procedure done?

Laparoscopic: More steps involved with bypass. The current picture shows bypass. The last question i answered for you has the picture of sleeve. ...Read more

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Can i eat salads 5 weeks after gastric bypass surgery?

Can i eat salads 5 weeks after gastric bypass surgery?

Probably: Do not see any reason why not, but please check with your surgeon, who knows you well. ...Read more

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What are the chances of death sith gastric bypass surgery?

What are the chances of death sith gastric bypass surgery?

Very low: Most bariatric centers of excellence track their mortality rate. When given a choice, most patients gravitate towards a center with mortality rate < 2% (different from morbidity/complication rate). If you need bariatric surgery, do your homework and get the best center you can. ...Read more

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What are the normal. Costs for lap band vs. Gastric bypass surgeries?

What are the normal. Costs for lap band vs. Gastric bypass surgeries?

Hospital accountant: The hospital accountant office were the surgery would be performed can inform you of the approximate cost for each procedure. Cost will vary by hospital and country. ...Read more

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Is sleeve gatrectomy surgery safer as compared to the gastric bypass surgery?

Is sleeve gatrectomy surgery safer as compared to the gastric bypass surgery?

Sleeve gastrectomy: That's a common misconception by patients. The gastric bypass is a more complicated operation than a sleeve, but the risk of a leak is the same for either operation. In addition, if a leak occurs, it is much harder to control in a sleeve than in a bypass. There are many other pros/cons for each, but the bottom line is that the risk is about equal. For diabetes and heartburn/reflux, bypass is best. ...Read more

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Pregnancy and gastric bypass surgery? What happens to a developing fetus if the b-vitamins and protein is not accessible after gastric bypass surgery?

Pregnancy and gastric bypass surgery? What happens to a developing fetus if the b-vitamins and protein is not accessible after gastric bypass surgery?

Pregnancy is ok. : Pregnancy is quite appropriate after roux-en-y gastric bypass. Most programs ask patients to wait 12-18 months post-op to be one pregnant. Regarding "b" vitamins and protein, as long as you are taking the recommended vitamin supplementation and sufficing your protein requirements (typically around 70 grams/day) all should be good for the developing fetus. ...Read more

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Can you have gastric bypass after total colectomy?

Can you have gastric bypass after total colectomy?

Bypass: If you have extensive abdominal surgery such as a tital colectomy a gastric bypass is not a good choice for you however you can look into other options such as the band or the sleeve gastrectomy. ...Read more

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Aside from liposuction and gastric bypass surgery, what fat removal procedures are there?

Resection: The classic operation for removal of fat is to cut it out. Most commonly in the abdomen- referred to as abdominoplasty. But it can be applied to any part of the body. This is not a recommendation for surgery. ...Read more

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Is gastric bypass surgery or liposuction better and why?

2 Entirely different: The indications for this are entirely different. First off, liposuction is not used for weight loss. It is indicated to control localized fatty deposits. Gastric stapling, bypass, or lap banding are indicated for morbid obesity. ...Read more

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Dr. Gregg Nishi
501 doctors shared insights

Bypass Surgery (Definition)

Bypass surgery is done to aid in weight loss and recovery from obesity by drastically diminishing the size and absorptive capacity of the stomach. Bypass surgery is often successful, but requires extensive follow-up with ...Read more


Gastric (Definition)

This refers to something that is ...Read more