7 Things to Know About Weight-Loss Surgery

Stepping on a scale

March 03, 2021

Clinical Contributors to this story:
Jonathan Reich, M.D.
Dena Arumugam, M.D.

Obesity is a dangerous disease. Affecting over 40 percent of Americans, it can cause type 2 diabetes, hypertension, coronary heart disease, stroke, gallbladder disease, sleep apnea, osteoarthritis, chronic pain, depression and even some types of cancer. If you have a body mass index equal to or greater than 35, losing weight isn’t just about cosmetics, comfort or self-confidence. Often, it’s a matter of life and death.

If you’re considering surgical weight loss, however, you should know that surgery won’t mark the end of your weight-loss journey. In many ways, it will actually just be the beginning. That’s because bariatric procedures require not only short-term recovery, but also long-term lifestyle changes that can permanently alter your relationship with food, fitness and your body.

Although the days, months and years after surgery look different for everyone, patients report many similar highs and lows. Here are 7 things you should know about recovery from weight-loss surgery: 

  • Nerves are completely normal before and after surgery. “Anxiety is the norm,” says Jonathan Reich, M.D., a bariatric surgeon at Southern Ocean Medical Center. “I don’t know of a single person who comes through the door entirely comfortable. Surgery is a big step. Fortunately, we’re able to put a lot of fears to rest. We are sensitive to patients’ issues and concerns, and we walk them through the entire process so they know what to expect.”
    That goes not only for surgery (i.e., what the procedure looks like and how it will go), but also for what comes after (i.e., what the patient will experience physically and even emotionally as he or she recovers). 
  • Because gastric sleeve surgery is laparoscopic, recovering from it is quick. “We’re usually able to get people out of the hospital within 24 hours. After that, they continue the recovery process at home for the next two to four weeks,” says Dena Arumugam, M.D., a bariatric surgeon at Jersey Shore University Medical Center, adding that most people can resume moderate physical activity within a few days and can return to work in as little as a week.
  • Pain is minimal. “The stomach itself does not have any sensation, but the incisions do cause some muscular pain for the first five days or so after surgery,” Dr. Arumugam says. “Your muscles will feel sore and tight.”
  • Patients recovering from weight-loss surgery must make a gradual return to solid foods. Expect to be on a liquid diet for approximately two weeks, after which you can slowly graduate to pureed foods, soft foods and, finally, regular foods.
    “The stomach’s function is to grind down food from a solid consistency to a mushy consistency, so we put our patients on a progressive diet to give the stomach, which was injured at the time of surgery, time to heal,” says Dr. Arumugam, who initially recommends a diet high in protein and low in fat and carbohydrates. “Once the stomach is fully healed, it can tolerate the full spectrum of foods.” 
  • Some patients report changes in their preferred tastes and flavors, and all report a decreased capacity for food that affects portion sizes. “Oftentimes, patients before surgery say they have never felt full. After surgery, they report for the first time having the feeling of being stuffed and unable to take another bite,” Dr. Reich says. “You can eat a much smaller portion and feel satisfied.”
    The change in appetite is as much chemical as it is physical. “Weight-loss surgery reduces appetite hormones,” continues Dr. Reich, who says the hunger hormone ghrelin is released by cells in the stomach. When you remove a portion of the stomach, you also reduce its capacity to release ghrelin, which makes you feel less hungry.
  • Although your appetite might change after surgery, your digestion won’t. Neither your bowel movements nor your food absorption will change, for example—although you should take a daily multivitamin to ensure you’re getting the nutrition you need, Dr. Reich says. Patients should expect an annual check of their vitamin levels to ensure they’re remaining nourished despite their diminished appetite.
  • After surgery, weight loss is both rapid and significant. Within the first month alone, Dr. Arumugam says you can expect to lose 20 to 30 pounds. After that, Dr. Reich adds, you can expect to lose approximately 10 pounds per month until you reach 100 pounds of weight loss, which typically happens within eight months.

“The surgery will not reach its full weight loss benefit without the patient also making necessary lifestyle changes, similar to other weight loss plans,” says Dr. Arumugam. “It takes constant work, eating healthy, and increasing physical activity to achieve success. The surgery makes these changes sustainable. If you’re committed to undergoing a major surgery, we hope you’ll be committed to healthy lifestyle choices for the rest of your life.” 

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The material provided through HealthU is intended to be used as general information only and should not replace the advice of your physician. Always consult your physician for individual care.

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