Weight loss surgery tied to lasting digestive issues

A common weight loss surgery is associated with long-term gastrointestinal problems and food intolerance, a recent study suggests.

 Researchers examined data on 249 extremely obese patients who had what’s known as laparoscopic Roux-en-Y gastric bypass, which reduces the stomach to a small pouch about the size of an egg.

Two years after surgery, these patients had lost about 31 percent of their total body weight on average. But compared to the control group of 295 obese people who didn’t have operations, the gastric bypass patients were far more likely to experience indigestion and an inability to tolerate multiple foods.

“It was already known from previous studies that the Roux-en-Y gastric bypass might aggravate gastrointestinal symptoms after surgery,” said lead study author Dr. Thomas Boerlage of MC Slotervaart in Amsterdam.

“However, most of these studies concern the first year after surgery,” Boerlage added by email.

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