How does gastric bypass surgery work in losing weight?

Two Ways. One: it decreases the size of your stomach to that your feel full sooner or at least restrict the amount of food you can take at one time. Two: decreases absorbtion of calories. By re-rounting your intestine, a portion of your intestine is removed from its ability to absorb calories and only acts a a tube to carry secretions from your liver and pancreas.

Related Questions

Can diet pills or gastric bypass surgery help me lose most weight?

Weight loss. It depends on the amount of weight you need to lose. If it's 100lbs or more surgery is a more permanent option and probably more weight loss. Read more...
Gastric bypass. All forms of weight loss surgery: lap band - gastric bypass do better for weight loss than any medicine. Read more...

If it's true that patient stops losing weight after one year of gastric bypass surgery, can she still lose weight with diet and simple sports?

Yes. Diet and exercise are the mainstay for weight loss. As long as the balance of calories in vs calories out is negative, then there will be weight loss. A gastric bypass surgery is only a tool to jumpstart a weight loss program. Any tool can be beaten. Continue for a lifetime with prudent, low-carb diet and daily exercise for ongoing weight loss and weight maintenance. Read more...

Does gastric bypass surgery work?

Bypass surgery. Gastric bypass surgery, and all the surgeries for the overweight, essentially work by decreasing the number and or the amount of calories that you are able to absorb. Each of the several procedures work in slightly different ways. All of the surgeries have their unique complications, so ask your surgeon specific questions. Read more...
Bypass works. Gastric bypass "works" in 95-97%. Works in three ways: 1. Small pouch makes you feel full. 2. Decreased ghrelin (hunger hormone). 3. Diverts food from lower stomach and duodenum (helps with diabetes). Must eat appropriately. Solid food, no sipping with food, no sweets, no bad snacks. Most lose 80% of excess weight at one year. Then some bounce back with total loss at 5-7 years of 70% excess wt. Read more...
Yes. . The gastric bypass is the gold standard weight loss operation. Read more...

I really want to lose 100 pounds -120 lbs. I want to consider gastric bypass surgery. Its questionable thoe. Scared : (pros n cons of it? Help me

The Good and bad. Gastric bypass is effective but it's a rather complicated surgery and requires lifestyle commitment to healthy eating and exercise. It's not a guarantee to lose weight but an effective procedure for one who is ready for the change. Surgery potentially could have complications post op and you're at risk of malabsorption so need to take vitamins daily &most importantly take protein 60+grams daily. Read more...
Gastric bypass safe. The the bypass is the gold standard for weight loss operations. It's been around for over 50 yrs and is a proven operation. It is the best in terms of overall weight loss. It is a safe operation but should only be done by an experienced gastric bypass surgeon. There are many lap band surgeons out there, but few are good gastric bypass surgeons. I have recommended bypass for family members. Read more...