After bariatric surgery
After weight-loss surgery, you generally won't be allowed to eat for one to two days so that your stomach and digestive system can heal. Then, you'll follow a specific diet for a few weeks. The diet begins with liquids only, then progresses to pureed, very soft foods, and eventually to regular foods. You may have many restrictions or limits on how much and what you can eat and drink.
You'll also have frequent medical checkups to monitor your health in the first several months after weight-loss surgery. You may need laboratory testing, blood work, and various exams.
Results may vary
Gastric bypass and other bariatric surgeries can help with success with long-term weight loss. The amount of weight you lose depends on your type of surgery and your implementing lifestyle changes. Along with weight loss, gastric bypass surgery can improve and help resolve conditions than are related to being overweight, such as:
High blood pressure
Obstructive sleep apnea
Type 2 diabetes
Nonalcoholic fatty liver disease (NAFLD) or nonalcoholic steatohepatitis (NASH)
Gastroesophageal reflux disease (GERD)
Osteoarthritis (joint pain)
Gastric bypass surgery can also improve your ability to perform routine daily activities, which could help significantly improve your quality of life.
When weight-loss surgery doesn't work
Gastric bypass and other weight-loss surgeries don't always work! in some cases, the weight-loss procedure doesn't work well or stops working. You may not lose weight and you may develop serious health problems. Talk to your HCP for information about adverse outcomes.
It is very important to keep all of your scheduled follow-up appointments after weight-loss surgery. If you notice that you are not losing weight or you develop complications, see your doctor immediately. Your weight loss should be monitored by your MD. At this time factors such as what is potentially contributing to your lack of weight loss evaluated.
It's also possible to not lose enough weight or to regain weight after any type of weight-loss surgery, even if the procedure itself works correctly. This weight gain can happen if you do not follow the recommended lifestyle changes, such as getting regular physical activity and eating healthy foods.
Please see: WebMD for more details