Gastric Bypass

The Gastric Bypass is a long-established weight loss procedure. Over 30 years of safe and effective weight loss outcomes and significant health benefits. The procedure is carried out laparoscopically via key-hole incisions in the abdomen.

Over 20 years experience in bariatric surgery
Lifelong psychological and nutritional support
Over 12,000 bariatric procedures completed
24/7 dedicated support
via our APP
Over 950 5-star trust pilot reviews

The Procedure

The bypass is done laparoscopically (keyhole) and under general anaesthetic. You can expect to be in theatre for between 60 and 90 minutes only assuming your procedure is uncomplicated. You will then normally have 2 days and nights in hospital during which time we can observe you and make sure you are on track to full recovery.

The Roux en Y gastric bypass is generally regarded as the premier weight loss surgery procedure as it combines excellent weight loss with significant health benefits. It has also been established for over 30 years, so we have lots of long-term data to show it delivers great results for the long term as well as the short.

80% of individuals aren't successful at long-term weight loss when losing 10% of initial body weight and maintaining the loss for at least 1 year3

What we offer

With over 20 years of expertise, we’re dedicated to guiding you through every stage of your weight loss journey.

Gastric Bypass Procedure

Your package includes everything you need to get the best outcome from your gastric balloon journey

personalised Support

Our registered Dietitians, Health Coaches and support team are here to help you achieve your weight loss goals

Weight Loss Tools

Change your habits and relationship with food with on-demand classes on diet, fitness, mindfulness and habit change

Gastric Bypass Reviews

Don’t just take our word for it, we’re proud to share the stories of our real patients, who achieved their goals with us


Lost 7 Stone

“The mutual support both in that group and in the Healthier Weight aftercare team has been amazing”


Lost 4.5 Stone

“I did my research and found the amazing Professor Singhal with a fantastic reputation. Do I regret it? Never, I just wish I’d had it done sooner.”


Lost 7 Stone

“It’s the best gift I could have given myself. I haven’t found a downside yet. I like how I look and that I can do anything I want to do.”                                 


Lost 20 Stone

“I went to numerous consultants before, but as soon as I found Rishi at Healthier Weight, I knew it was him whom I wanted to do my operation”

Frequently asked questions

This depends upon what you do for a living, but if you have a sedentary occupation you can generally expect to be back at work about 2 weeks after gastric bypass, after which time the wounds should have healed and you will be feeling more comfortable. If you have a physically demanding job involving lifting etc, you may need a little longer. The bowel and stomach inside your abdomen will be healed in around 6-8 weeks, so during this period it is important that you follow the nutritional guidelines as closely as you can.

Your long-term success with your procedure is dependent on high-quality aftercare. Anyone who has had weight loss surgery will tell you this is crucial. All too frequently, overseas surgery packages have no aftercare.


In the UK surgeon outcomes are monitored closely. There is a duty of candour and transparency. In many overseas countries, the same standards do not apply. We have seen many botched procedures from overseas that come with limited aftercare and warranties. You won’t receive any support for any serious problems that arise post-op, and you will ultimately go onto the NHS waiting list for your procedure to be put right.

Generally there is minimal scarring with a gastric bypass. The operating ports are placed in the abdomen through 5 narrow (0.5 cm) incisions which are sutured and/or glued and will normally heal in about 10-14 days. The scars should fade gradually. Some individuals have a greater tendency to form keloid which may result in thicker and more prominent scars.

You may eat most foods that don’t cause you discomfort. However, because you can only eat small amounts, it is important to include foods rich in protein but low in fat and sugar. We encourage you to eat vegetables, fruit, whole grains, lean meat and fish. You will be provided with detailed nutritional information following your gastric bypass surgery.