Reading Time: 3 minutes

Weight loss with the gastric bypass – The Benefits, Risks and Expected Results

The gastric bypass is a procedure used to help severely obese individuals lose weight. The procedure works by separating the stomach into two, with an upper and lower section. The small intestine is then rerouted to the upper half of the stomach which is the smaller section as shown below. The purpose of this is to reduce the amount of food that can enter the stomach, which also reduces the number of nutrients that can be absorbed, causing weight loss for the individual.

Our procedures at Healthier weight are all completed laparoscopically, compared to open surgery which helps reduce the amount of pain and recovery time for our patients. Laparoscopic surgeries also reduce the chance of complications as well as a shorter hospital stay for patients.

Furthermore, to care for our patients we ensure they have an examination beforehand to ensure they are eligible for the procedure. This includes checking a simple eligibility criteria, including factors such as their body max index. If they are deemed eligible by our team, they can continue with the process, including consultations with medical professionals before their procedure.

The gastric bypass is one of the most effective procedures out of all the bariatric options, with patients losing up 80% of their excess weight within the first year. However, it also has its limitations, which can cause people to prefer alternatives such as the band or the sleeve.


Like every operation, there is a risk of bleeding and infection. This is because germs can enter incisions that were made during the operations. Surgical wounds can happen from 2-3 days after the initial operation (NHS). Therefore, it’s important to keep the wounds clean with saline solution to remove any drainage or dry blood from the wound.

Nutritional deficiencies

Another risk is nutritional deficiencies. This is because bypass patients don’t fully digest vitamin b12 from protein foods. This is a disadvantage as it plays a role in your brain and nervous system function both physically and psychologically. Therefore, it is important you take the vitamins recommended by Healthier Weight after having your operation.

Dumping syndrome

Dumping syndrome is a condition where food moves too quickly from your stomach to your small bowel too quickly after eating. This process can happen a lot more with foods that are high in sugar. This is a disadvantage as it can cause symptoms such as rapid gastric emptying as well as vomiting and feeling bloated.


On the other hand, the procedure is a very effective operation which is performed to help improve a patient’s quality of life. For a lot of people, bariatric surgery is the only option to live a happier life. Therefore, by having this procedure that’s exactly what can be achieved.

Weight loss

The main benefit of the gastric bypass is that it causes weight loss which can have major benefits attached, such as a longer life expectancy. For people who suffer from obesity, by limiting the amount you can eat you can also improve your relationship with food, which can massively help you psychologically.

Improvement of comorbidity

With weight loss, your body will naturally perform better. This can cause other illnesses that are associated with obesity, to reduce. These illnesses include the following:

  • Heart disease
  • Sleep apnoea
  • Type 2 diabetes

Quality of life

With the previous two points in mind, your quality of life as a bariatric patient can majorly improve after surgery. With your body being more physically active and better mental health, you are more open to trying new things. One of our favourite examples of this is with one of our patients, Andi Barker, who saw a significant difference in his mental and physical state, allowing him to do more things with his family on big occasions and on a day-to-day basis.


If you are interested in a gastric procedure such as the gastric band, gastric sleeve, gastric bypass or ESG. You can contact our expert team today and book a free consult with one of our weight loss surgeons.


    I'm happy to receive marketing email from Healthier Weight only. We never share or sell data with third parties.

    Share This Post

    Subscribe To Our Newsletter

    Get updates and learn from the best

    More To Explore

    Diet and nutrition

    The Health Benefits of Bariatric Surgery Beyond Weight Loss

    Reading Time: 2 minutes In recent years, bariatric surgery has gained recognition not only for its remarkable impact on weight reduction but also for its complex health benefits that extend beyond shedding excess weight.

    Get a FREE consultation by calling
    0800 3134618 
    Get a quote 
    We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. Your personal data will be used for the personalization of ads and cookies may be used for personalized and non-personalized advertising. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit “Cookie Settings” to provide a controlled consent.  Read our cookies policy here