Endoscopic Sleeve Gastroplasty (ESG) is a non-surgical weight-loss procedure where a gastroenterologist uses an endoscope to stitch the stomach into a smaller size, reducing its capacity. Unlike traditional bariatric surgery, ESG is performed through the mouth and doesn’t involve cutting or removing any part of the stomach.

Lap band surgery, also known as gastric banding, is a type of weight-loss surgery where a band is placed around the upper part of the stomach to create a small pouch. This restricts food intake, leading to weight loss. In the UK, lap band surgery is available through both private healthcare providers and the NHS.

Roux-en-Y bypass is another term for the RNY procedure. This surgery helps patients lose weight by creating a small pouch from the stomach and connecting it directly to the small intestine, bypassing a portion of the digestive tract. The result is a reduced ability to absorb calories and nutrients.

Similar to a GI doctor, a "gastro dr" refers to a specialist in gastroenterology. Patients typically see these specialists for issues related to digestive health, such as ulcers, acid reflux, or liver disease. They perform diagnostic procedures like endoscopies or colonoscopies to identify and treat conditions.

Roux-en-Y (RNY) gastric bypass is a type of weight-loss surgery in which the stomach is divided into a small upper pouch and a larger lower "remnant" portion. The small intestine is rearranged to connect to both. This reduces the stomach's capacity and alters how the body absorbs calories and nutrients, making it one of the most effective bariatric surgeries for long-term weight loss.