What is Gastric Bypass Surgery?

Gastric bypass surgery, or bariatric surgery, is a type of weight-loss surgery that involves bypassing a section of the small intestine by creating a small stomach pouch.

This limits the amount of food that can be eaten at one time and makes the patient feel full more quickly.

Gastric bypass surgery is a common bariatric surgery recommended for patients with obesity, type 2 diabetes, and high blood pressure.

What is Gastric Bypass Surgery
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My Experience with the Bariatric Surgery and why I don't recommend it - Carlos Opinion

This is my experience, and only take what resonates with you, consult your doctor.

When I was 24, I went with a gastroenterologist due to a pain I had in the left side of my stomach-abs.

The pain was being chronic.

The gastroenterologist ordered me to do a endoscopy, and he found a hiatal hernia.

Little did I know in that time, that I should have focus on my diet, and eliminate my triggering foods, rather than just listening to what the gastroenterologist asked for, a bariatric surgery, which is also known as a gastric bypass surgery, similar to the one that people also aim to do for weight-loss.

Plus, an old man gave me an advice that “once a person has a first surgery, following new symptoms will come up”. And it was true, but I didn’t listen at that time.

Nevertheless, I went with another doctor for a second opinion, but it was still a conventional doctor and not a functional doctor, and his opinion was the same, “to do the surgery”.

So, mistakenly I listened to their opinions and had the bariatric surgery for the hiatal hernia, which was made laparoscopically.

The recovery was fast, since the 4 cuts were of around 2 cm each, and it took me around 4 weeks to eat a complete meal, but the issues came later.

Since at that time I didn’t changed my diet accordinlgy to what my body did not triggered, such as gluten and eggs, my body eventually will bring up the autoimmune symptoms.

Couple years after, a doctor found a thyroid nodule, which eventually lead me years after to learn how to heal Hashimoto.

Even one day, I had some nausea after having a chicken salad that I have eaten from Carl’s Jr, and I had the urge to puke, but due to the surgery, I could’t.

So, if I had only knew earlier in my life, that for each and every body there might be triggering foods that can cause inflammation (gluten in my case), eariler I could have followed my healthy journey.

But, those deep changes were not made, and I had a diet that still included processed foods, gluten, eggs, orange and some more triggering foods that can be found in my Hashimoto Diet

I didn’t take care of my root causes of my imbalance and autoimmune disorder.

Even though, my diet at that time could be considered not that bad, by I used to include foods with a package that was stated as “healthy”, such as whole wheat bread. 

Certainly, it was not healthy choice, once one learns to read the ingredients label and sees that it has several ingredients that sound not easy to understand.

In short, why I don’t recommend such gastric bypass surgery? Because there are triggering foods that need to be discovered that are bringing up inflammation to the body.

Or for the people with weight loss goal, there might be other foods that are being converted into sugar, like rice, corn or potatoes and are not allowing the person to lose weight.

Foods not neccesarily must be under the line of considered unhealthy foods to be removed, such in my case that I also have to leave out of my diet pineapples, lentils and almonds.

When I talked with my current functional medicine doctor, he agreed that I should have not done the surgery.

Nevertheless, it was a situation that was already done and I have to accept it even if I regret it, but now it is also a part of my healing story and it lead me to know what eventually nurtures me and heals me.

Alternatives to Check before taking decision of a Gastric Bypass Surgery for Weight Loss

What is Gastric Bypass Surgery - Weight loss surgery

Definition of Gastric Bypass Surgery

Gastric bypass surgery is a type of bariatric surgery that involves dividing the stomach into two sections: a small pouch and a larger pouch.

The small pouch is connected directly to the small intestine, bypassing the lower stomach and the first part of the small intestine.

This creates a small section of the small intestine where food and digestive juices meet, allowing the patient to absorb fewer calories.

People search for this alternative as a weight loss surgery.

How Gastric Bypass Surgery Works

To perform a gastric bypass surgery, the surgeon makes small incisions in the abdomen and inserts a laparoscope, a long, thin camera.

The surgeon then creates a small pouch by dividing the stomach into two sections.

The small pouch is connected directly to the middle portion of the small intestine, bypassing the lower stomach and the first section of the small intestine.

The surgeon may also bypass the duodenum, the first part of the small intestine, to further limit the amount of food that can be absorbed.

Types of Gastric Bypass Surgery

Roux-en-Y Gastric Bypass Surgery

The roux-en-y gastric bypass surgery is the most common type of gastric bypass surgery.

During the surgery, a small stomach pouch is created and connected directly to the middle portion of the small intestine, bypassing the lower stomach and the first part of the small intestine.

Biliopancreatic Diversion with Duodenal Switch

The biliopancreatic diversion with duodenal switch is a less common type of gastric bypass surgery.

The surgeon removes a larger portion of the stomach and bypasses a larger section of the small intestine.

This surgery can result in greater weight loss, but carries a higher risk of complications.

Adjustable Gastric Banding

Adjustable gastric banding is a type of gastric bypass surgery that involves placing an adjustable band around the upper part of the stomach to create a small pouch.

The band can be adjusted to limit the size of the pouch, allowing for gradual weight loss.

What are the Risks of Gastric Bypass Surgery?

Possible Complications

Like all surgeries, gastric bypass surgery carries risks of complications such as infection, bleeding, and blood clots.

Patients may also experience leaks in the stomach or small intestine, or blockages in the intestine.

Dumping Syndrome

Dumping syndrome is a common complication of gastric bypass surgery.

It occurs when food moves too quickly through the stomach and small intestine, causing nausea, vomiting, and diarrhea.

Recovery Time

Recovery time following gastric bypass surgery can vary based on the individual patient and the type of surgery performed.

Most patients can expect to spend one to two days in the hospital and up to six weeks recovering at home before returning health conditions to normal activities.


Gastric bypass surgery is a type of bariatric surgery that can result in rapid weight loss to achieve the desired body mass index and long-term weight loss when combined with a healthy diet and exercise.

It is an used treatment for obesity, type 2 diabetes, and high blood pressure. 

While the surgery carries risks of complications, these risks must be discussed with a qualified bariatric surgeon.

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