In the fight against obesity, gastric bypass surgery has emerged as a powerful tool, offering individuals struggling with severe weight issues a chance at significant and sustainable weight loss.

As with any surgical intervention, gastric bypass has its own benefits, side effects, and potential complications that individuals should be aware of before making a decision.

What’s Gastric Bypass and How Does It Work?

A small pouch is created from the stomach and attached directly to the small intestine as part of the weight-loss treatment. This restricts how much food can be eaten and how much nutrition can be absorbed, which causes weight loss.

gastric bypass
what does gastric bypass do

Swallowing food after surgery will cause it to enter the tiny pouch of the stomach before traveling directly to the small intestine. This decreases the number of calories and nutrients the body absorbs by skipping the first part of the small intestine and the majority of the stomach.

There are various steps to the technique:

  • First, the surgeon separates the stomach into two pouches, one upper and one lower.
  • The small intestine is then divided, and the divided small intestine’s lower end is taken up and attached to the tiny upper stomach pouch.
  • The remaining small intestine is subsequently linked to the lower stomach pouch. This allows the digestive juices from the bypassed stomach and the first section of the small intestine to mix with the food in the lower stomach pouch. It is an open or laparoscopic technique.

Who is a good candidate for gastric bypass surgery?

Body mass index (BMI) >40 or BMI >35 with obesity-related health issues including type 2 diabetes, hypertension, or sleep apnea are usual indications for this surgery. Significant weight loss and an improvement in health issues associated with obesity are possible outcomes of the procedure.

However, it also entails downsides and probable problems such as bleeding, infection, blood clots, and nutritional deficits. Before making a choice, it is crucial to talk with a healthcare expert about the procedure’s downsides and advantages.

Types of Gastric Bypass

Gastric bypass surgery is available in three different configurations: Roux-en-Y, mini, and loop.


Gastric bypass surgery using the Roux-en-Y technique is the most popular kind. During the procedure, a small pouch from the stomach is created and connected directly to the small intestine, omitting the remainder of the stomach and the upper part of the small intestine. As a result, the stomach can contain less food, which reduces the amount of calories and nutrients the body can absorb.

Mini Gastric Bypass

Mini-gastric bypass surgery is a less common kind of gastric bypass surgery in which a long, thin tube is created from the stomach and connected straight to the small intestine. This surgery is comparable to Roux-en-Y, however, it is less invasive and takes less time to do.

Loop Gastric Bypass

A “loop” gastric bypass is a distinct sort of gastric bypass procedure that involves attaching a tiny pouch made of the stomach to the small intestine without removing any of the top portions of either the stomach or the small intestine. Compared to Roux-en-Y, this technique is less frequent and may have a higher risk of complications.

The individual’s requirements and goals, as well as their general health and medical history, influence the decision to have gastric bypass surgery. Patients must consult with a skilled healthcare physician to identify the best plan of action for their weight reduction journey.

Pros and Cons of Gastric Bypass

The Advantages of Gastric Bypass

  • Patients who have the surgery can lose up to 60–80% of their extra body weight.
  • Type 2 diabetes, high blood pressure, and sleep apnea are just a few of the obesity-related health issues that can treat or improve.
  • Studies have demonstrated that the surgery can offer a sustained reduction in weight, particularly when accompanied by modifications in lifestyle, including a healthy diet and consistent physical activity.

The Disadvantages of Gastric Bypass

  • Like any operation, it has risks and potential problems, such as infection, bleeding, and blood clots.
  • It requires significant lifestyle changes, including a strict diet and regular exercise, to maintain weight loss and overall health.
  • The surgery can result in nutritional shortages, particularly if patients do not adhere to a regular vitamin and mineral supplement schedule.

It’s important to note this treatment may not be the best option for everyone. And it’s important to discuss the risks and benefits with a healthcare professional before making a decision.

Gastric Sleeve vs. Gastric Bypass

Both are two forms of bariatric operations that aid in the weight loss of people who are obese. Both treatments involve reducing the size of the stomach but diverge in the methods used to modify the stomach and the effects on the digestive system.

Similarities and Differences

A significant portion of the stomach is removed during gastric sleeve surgery, leaving a thin tube- or sleeve-shaped stomach in its place. Weight loss results from this restriction in food intake. In contrast, gastric bypass surgery includes the creation of a tiny stomach pouch and the rerouting of the small intestine to link to the pouch. This reduces both the amount of food ingested and the amount of nutrients absorbed, resulting in weight reduction.

Both techniques have advantages and disadvantages. Gastric sleeve surgery is a less invasive operation with fewer complications and a shorter hospital stay. It also does not necessitate rerouting of the small intestine, lowering the possibility of nutritional shortages. It may, however, be less successful in treating obesity-related illnesses such as type 2 diabetes and gastroesophageal reflux disease (GERD).

However, gastric bypass surgery is more successful in managing type 2 diabetes and GERD. It also leads to more weight reduction and faster weight loss in the first year following surgery. However, the surgery is more complicated, with a larger chance of complications and a lengthier hospital stay. To prevent vitamin deficiencies, it also needs greater follow-up care as well as a tighter diet and supplement routine.

In conclusion, both operations can assist people who are obese to lose weight and improve their health. Individual considerations such as the patient’s medical history, weight loss objectives, and preferences influence the decision between the two treatments. To choose the best option, it is critical to review the risks and advantages of each surgery with a healthcare practitioner.

Gastric Bypass vs. Lap Band

Lap Band and Gastric bypass are two types of bariatric surgeries that can help individuals with obesity to lose weight.

Gastric bypass surgery includes constructing a tiny stomach pouch and rerouting the small intestine to attach to the pouch, decreasing both the amount of food taken and the amount of nutrients absorbed.

In contrast, the Lap Band method involves placing a flexible band around the upper portion of the stomach, creating a small pouch that reduces the amount of food one can consume.

Here are some differences between the two procedures:

  • Comparing both treatments, Gastric Bypass is superior to sleeve gastrectomy when it comes to shedding pounds and addressing obesity-related health problems, including type 2 diabetes and high blood pressure.
  • Gastric bypass is a more complex procedure with a higher risk of complications such as bleeding, infection, and blood clots, compared to Lap Band. In contrast, the lap band might result in problems like band slippage, erosion, and infection.
  • Gastric bypass requires more follow-up care and a stricter diet and supplement regimen to prevent nutrient deficiencies, compared to Lap Band.

It’s important to note that the choice between the two procedures depends on individual factors such as the patient’s medical history, weight loss goals, and preferences. Also, it’s important to discuss the risks and benefits of each procedure with a healthcare professional to determine the best option.

Considering Getting Gastric Bypass Surgery?

Contact COH Clinic if you have any questions about whether you would be a good candidate for a gastric bypass. We are specialists in weight reduction surgery and wish to assist you in regaining your life. Depending on your unique scenario, we provide a variety of techniques. Call us at +90 (536) 934 6524 right away to schedule a consultation so you can reclaim your life from obesity.

Frequently Asked Questions

Can you ever eat normally after gastric bypass?
Can you ever eat normally after gastric bypass?

It might take three months following surgery to resume eating "regular" meals. The purpose of your gastric bypass diet is to help you gradually return to your regular diet.

Is gastric bypass only for weight loss?
Is gastric bypass only for weight loss?

Gastric bypass surgery, in addition to helping patients lose weight, may also alleviate or cure certain illnesses that are frequently brought on by obesity, such as heart disease, excessive blood pressure, and sleep apnea with obstruction.

Is gastric bypass healthy?
Is gastric bypass healthy?

As with any major procedure, there are both long-term and short-term health concerns associated with gastric bypass and other weight-loss procedures. Similar to any abdominal surgery, there is a chance of infection and significant bleeding with this particular technique.

Which is more successful gastric bypass or sleeve?
Which is more successful gastric bypass or sleeve?

Those who have a gastric bypass operation lose 50 to 80 percent of their excess body weight in an average of 12 to 18 months, while those who have a sleeve gastrectomy lose 60 to 70 percent of their excess body weight in about 12 to 18 months.

Online FreeConsultation
Coh Clinic Online