Weight Loss Surgery – A Complete Guide

Bariatric weight loss surgery is always a tremendous opportunity for those who want to get rid of obesity for their whole life. Weight loss surgeries surgeries restrict the amount of food a stomach can hold and reduces your hunger and appetite.

These surgeries also cause malabsorption in the human body. These bariatric weight-loss surgeries can cause major changes in your hormones.

Nowadays, weight loss surgeries are carried by using minimally invasive techniques. Some of the most common bariatric surgeries that are well implemented on the patients are gastric bypass, sleeve gastrectomy, adjustable gastric band, and biliopancreatic diversion with duodenal switch. Each surgery has it’s own time interval, advantages, and disadvantages.

Gastric Bypass Weight Loss Surgery

The procedure of gastric bypass is completed in two parts. In the first phase, the small part of the stomach is cut off from the whole stomach. This small pouch is approximately 30mm and its volume is like 1 ounce. In the second phase, the small intestine is divided into two parts and the lowermost part is attached to the small stomach which was newly created.

Now, at last, the bottom small intestine gets connected with the uppermost part of the small intestine. This process helps the stomach to let stomach acid and some digestive enzymes to pass through it. The upper portion of the small intestine will surely help the body to mix the food well.

This surgery is great in changing the mechanism of the human body. The great part of the surgery is that the new stomach allows less food to fit in because it is very small in size. The smaller meal size is directly proportional to the less caloric intake.

After the surgery there is a change in the mechanism of the body. These changes help in promoting satiety and due to less space in the pouch; you may not even feel hunger for a longer time. This phenomenon also helps patients who have type two diabetes.

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Gastric bypass is great helping patient reduce their weight. The surgery can easily help any individual to lose up to 80% of his or her body weight. This is a long term process so you have to be calm and ready to fight for it.

After this bypass, you will see great changes in your body because it stops you from overeating and helps you to reduce your caloric intake due to a lack of space in the stomach. The hormonal changes occur after the surgery and they have a great impact on reducing your appetite and hunger.


Gastric bypass surgery is really good as well as more technical and risky. This surgery is far more complicated then adjustable gastric band surgery and LSG. After this surgery, you have to live with long term vitamins and minerals deficiency.

It would be mandatory for taking supplements for your body for a very long time. After the surgery, your stay at the hospital would also be bigger and you have to visit your surgeon on a weekly or monthly basis as he will monitor your health after the weight loss.

Adjustable Gastric Band

The adjustable gastric band is often called the band. It has an elastic band that is fixed on the upper side of the stomach. It creates a small pouch on the upper side of the stomach. The other half of the stomach is below the band.

The main function of the device is to small the size of the stomach. After having this surgery your craving will get down impressively. You feel your stomach full with less amount of food and will no more feel hunger. There is an opening between the pouch and the feeling of hunger depends on the opening size of the pouch.

The size can be adjusted with the help of sterile saline according to the nutritional needs of an individual. The core impact seen after the installation of the band was the reduction in hunger which helps the patient to reduce their amount of caloric intake.

Some major advantages of this surgery are that the surgery is reversible, it reduces the caloric intake, has a low risk of vitamin and minerals deficiency and it requires less time to rest in the hospital.

Some major disadvantages are that it has a slow weight loss process than other surgeries, many patients didn’t even lose up to 50% of the weight, the band is an external device and can have medical problems to patients and it has the highest rate of re-operation.

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Biliopancreatic Diversion with Duodenal Switch (BPD/DS)

The process consists of two parts, in the first phase a tubular stomach is created by reducing the size of the stomach. In the second phase, a large portion of the small intestine is bypassed.

In the first half, the small intestines are divided and past the outlet of the stomach. Then they are brought up again and attached to the newly made stomach. So now when the patients eat the food goes to the small pouch and goes directly to the small intestine. When food goes to the small intestine it starts working to get the protein and fat rather than strengthen it in the belly for the long term.

This surgery helps to reduce the consumption of the food which is very similar to all other surgeries. The food doesn’t pile up and goes straight to the small intestine which reduces the caloric intake. It has a significant effect on vitamins and minerals so using supplements is very important after this surgery. This patristic surgery is considered to be the most effective surgery and has a great impact on having issues of diabetes.

Some major advantages of the surgery are that this surgery to lose weight has a greater ratio of weight loss which is up to 70% for some individuals, it enables the patients to eat the daily routine meals, it is very effective for the person having diabetes, the surgery helps patient to reduce their appetite and hunger.

Some major disadvantages noticed were that it has the most risk than any other surgery to lose weight, it requires a long stay at the hospital after the surgery and this surgery has a rate of potential deficiency in protein, mineral, and vitamins. You need to have a strict routine for visiting your surgeon after the surgery so he could monitor all the changes that may occur in the body.

Sleeve Gastrectomy

This process involves removing 80% of the stomach and the remaining is in shape like a banana. The process also has a great impact on gut hormones which has a great effect on your craving, hunger, and sugar control. Many studies have suggested that this bariatric surgery has great importance as it has a great impact on weight loss and the sugar level of the human body. Many scientists have research that this weight loss surgery has a great impact on type.two diabetes and helps in curing it.

One major advantage of this bariatric weight loss surgery is that it restricts the amount of food that the stomach can hold. Have a great effect on rapid weight loss which is up to 50%. It requires no external object or equipment to be placed in the body which may cause problems in some individual bodies. You have a relatively short stay at the hospital for just two days. It restricts your hunger and appetite due to hormonal changes.

Some major disadvantages are that this process is totally irreversible as you can’t get the stomach that you cut off earlier. You may endure the long term deficiency in minerals and vitamins have more complications than an adjustable gastric band.

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Key Considerations After Bariatric Weight Loss Surgery

Some key points you might want to know right after bariatric weight loss surgery.


After bariatric weight loss surgery takes it easy for your exercise routine. Don’t go hard on your body and make it shamble in pain. After bariatric surgery, you can walk in hospitals and feel for your body. Try not to join sports or weightlifting, listen to your surgeon. Yes! It is important to do exercise to control your stress and appetite level and to burn off some extra calories.

After being at a certain age on which we don’t have a great routine, we have to some time out for exercise and cardio. After surgery many patients think that they would start from hard exercises such as boot camp but that’s not a truth. The better option after weight loss surgery is to get the complete details from your surgeon regarding the exercises that you can perform.


Many insurance companies look to add a 2 to 3 weeks diet to the patient routine. They want them to shrink the liver and reduce the fat around the abdomen. This process reduces the risk of bariatric surgery. Many insurance companies want their clients to follow the diet routine under the monitoring of physicians three to six months before their weight loss surgery. These diets are informative and give insight regarding healthy food and eating habits. You don’t have to diet after surgery but try to eat healthily. Your appetite will be back after surgery yet to have to control yourself from eating bad quality of food.

Doing exercises and following a weight loss routine is way harder than just going to a surgeon and have a bariatric weight loss surgery. The surgery also helps an individual reducing their appetite because the size of the stomach is changed and it absorbs very less than before. The bariatric surgery also helps guts to send messages to the brain of being full. That’s how having a surgery to lose weight is more successful than having a healthy diet for weight loss (Reference).

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Surgeons suggest waiting 12 to 18 months before getting pregnant. Many women are most fertile after weight loss surgery. Being overweight has great chances that birth control pills will not work so condoms are highly recommended in that period.

Due to obesity, your menstrual period is also irregular and you would get a child when you least expect it. After surgery, waiting for some time will surely lead you to a healthy baby. When you won’t be having obesity there are fewer chances that your kids will become obese in the future. There are very fewer chances of miscarriage and stillbirth in healthy women rather than an obese one.


After the bariatric weight loss surgery, a person just has to weight two to three to get back on the usual routine. You might see a temporary hair loss for 2 to 3 months right after the surgery. There is no adequate research on why this hair loss happens after surgery even after giving the right amount of supplements and protein to the patient.

Many patients opt to do plastic surgery right after the weight loss surgery but it totally depends on them as it’s not important to have plastic surgery after the bariatric surgery.  After the weight loss, there are only five percent of the people who might gain weight again otherwise there are no chances that anyone might gain weight after bariatric weight loss surgery (Reference).

Vitamins and Medication

You can stop using weight loss medicines after bariatric weight loss surgery. But you will need to have multivitamins to make sure that your body is working in a perfect condition. You may need some high doses of iron, calcium, and vitamin D. Make sure you are having an early lab check to reduce its rate of deficiency in the body.

Insurance companies never pay for your supplement rather they pay for your lab checks so make sure to get tested to give the results to medical accounts. Surgery to lose weight can lead to a deficiency of minerals and vitamins in the human body.

It is highly recommended to use the right amount of minerals and vitamin supplements after bariatric weight loss surgery. Having the right amount of supplements is important because the lack of vitamins and minerals can lead you to some severe medical issues such as:

• fatigue (a patient may feel tired all day)

• anemia (very less red blood cells will carry oxygen in your body)

• injuries and loss in muscles and bones

• worsening night vision

• very low immunity (it would be hard for your body to stay healthy)

• loss of nerve function (you may lose your senses)

• mental function loss (your intelligence level will fall)

A nutrients deficiency can easily be avoided by having a healthy routine and a good diet system. The use of supplements and vitamins will always be a great addition to your daily life as it will reduce the risk of any problem mentioned above.

After bariatric weight loss surgery, many surgeons suggest patients have a daily check-up of vitamins and minerals. They try to monitor the patients and help them to reduce the chances of deficiency in minerals and vitamins.

The health problems may occur to the person to do have a daily checkup routine for their minerals and vitamins or may have a bad lifestyle lacking an adequate amount of healthy material in the body.


Mental Health

Many patients who have obesity might also have an eating disorder, these disorders lead to an unhealthy lifestyle and eating habits. Many people might have obesity due to the excessive use of drugs and alcohol and the most important part to reduce this problem is to stop taking drugs and consuming alcohol.

Weight gain occurs when you eat more food then burn calories the whole day. Yet there are many other conditions that might help in weight gain and didn’t have any link with eating habits such as:

• sleeping very less or irregularly

• Eating more starchy food that may increase the sugar level in your body like white sugar or processed food.

• very less intake of healthy and natural food resources such as vegetables, fruits, nuts, and seeds.

• having too much stress or depression

• taking to many painkillers, supplements, or any medication.

• living in an area where is too much different kind of pollution.

Obesity is a progressive disease that doesn’t stop growing until you commit to stop it at any cost. When your body gains weight it signals the brain which aids in gaining more weight. Obesity increase more chances of getting more food in your body. It makes your body addict to the food and you have that all day.

Consuming alcohol too much is also not good after bariatric weight loss surgery. Try to make sure to avoid alcohol while having this rapid change in weight because even a small of amount alcohol can increase intoxication. Try to avoid driving or carrying heavy equipment after having alcohol and seek your doctor if alcohol is becoming a problem for you.

After the weight loss surgery, many patients’ lives get better and they follow a healthy routine and stay healthy, but the suicide rates also increase after bariatric surgery. The people who suffer from obesity have very low self-esteem and suffer from anxiety & depression. But after the surgery, there are many cases reported of the suicide which may suggest that patients might have any mental disorders or may have come through any major life stressors but some still are unexplained by science.

So now it is good to go to the physiatrist and physiotherapist prior to the weight loss surgery and have a full medical report that if the person is capable of surgery or not. You should not stop visiting them after bariatric surgery; try to visit them on at least a monthly or weekly basis.

Does Weight Loss Surgery Pose Any Risk?

There is no risk of weight loss surgery. In fact, bariatric surgery is safer then knee replacement surgery. In recent studies, there were only 1 out of 600 men who died because of the weight loss surgery. This rate is less than the surgery of knee or gallbladder (Reference).

On the other hand, the patients with bariatric weight loss surgery have 60% fewer chances of deaths than an obese person. After the surgery, deaths due to diabetes have reduced to 90% and the heart disease rate is dropped 50% after bariatric surgery.

The bariatric weight loss surgery has way more benefits than being obese. But you have to consult your surgeon, family members, and close ones before having the surgery.

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