How much weight can you lose with gastric bypass surgery?

Gastric Bypass surgery is also known as Bariatric Surgery or weight-loss surgery. It is a surgical procedure that helps you lose weight by changing how your stomach and small intestine handle the food you eat.
sam miller
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Joined: Mon Oct 08, 2018 5:04 pm

How much weight can you lose with gastric bypass surgery?

Unread post by sam miller » Wed Oct 10, 2018 12:35 am

The amount of weight you will lose with Gastric Bypass surgery depends on a number of factors. These factors include, diet, exercise, lifestyle, and your overall commitment to changing old habits. Because different people have different heights and weights and therefore different body mass index’s, we cannot measure expected weight loss in pounds. Someone who is 6 foot 2 and 400 lbs will lose a different amount of weight than someone who is 5 foot 4 and 220 lbs. But both of these patients will lose a similar percent of their excess weight.

Example Weight Loss

Patient 1 is 6 foot 2 and 400 lbs:

Patient 1’s ideal weight is 194.7 lbs.
Patient 1 has 205.3 lbs of excess weight.
He loses 65% of his excess weight, 133 lbs.
His new weight is 266 lbs 2 years after surgery.

Patient 2 is 5 foot 4 and 250 lbs.

Patient 2’s ideal weight is 145.6 lbs.
Patient 2 has 104.4 lbs of excess weight.
She loses 65% of her excess weight, 68 lbs.
Her new weight is 182 lbs, 2 years after surgery.

You can see how patient 1 lost 133 lbs and patient 2 lost 68 lbs but both of them lost the same percent of their excess weight. This is why we measure average weight loss after weight loss surgery as a percentage of excess weight.
On average gastric bypass patients lose about 70% (Bariatric Surgery, A Systemic Review and Meta Analysis, 2004) of their excess weight. To simplify, 70% is a good number to use when figuring your expected weight loss after gastric bypass.

Hollyrose
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Joined: Wed Aug 29, 2018 3:00 pm

The weight I lost with gastric bypass surgery?

Unread post by Hollyrose » Wed Oct 10, 2018 4:26 pm

I have lost 50 kg in 1 year. Thanks to MirageSearch

Penelope
Posts: 17
Joined: Thu Feb 28, 2019 11:12 am

How does drinking more water help us to burn body fat?

Unread post by Penelope » Wed Mar 06, 2019 2:14 pm

veryone always says it’s good to drink a lot of water to help to lose fat. I hear people say it to each other every day like schizophrenic parrots.

“You should drink more water!” “You don’t drink enough water!” “You should drink more water, because it will help with your fat loss…” – blah, blah, blah.

Ever have someone explain to you how water helps you to lose fat? I bet no one can explain it to you. Most people tell you to drink more water to lose fat, but few know the reason why.

So, how does drinking more water help us to burn body fat?

Stay with me on this and read carefully. This will make you a star during the next water conversation you have.

From the standpoint of fat loss, you want to be in a position metabolically where the liver is converting stored fat to energy. The liver has other functions, but this is one of its main jobs.

Unfortunately, another of the liver’s responsibilities is to pick up the slack for the kidneys, which need a lot of water to work properly. Actually, your kidneys need a lot more water than most people realize.

If the kidneys are water-deprived, the liver has a double duty assignment. It has to do the work of the kidneys along with its own work. This double time assignment only serves to lower the actual productivity of the liver. It then can’t metabolize fat as quickly as it could when the kidneys do their job with efficiency.

If you allow this to happen, not only are you being unfair to your liver, but you’re also setting yourself up to store fat because you've made the liver less efficient at turning stored body fat into energy.

So, you’ve learned how vital the roles of the liver and kidneys are, but now the question becomes how much water?

When examining the research, there is a paper in the Journal of the American Dietetics Association (Volume 99, number 2, pages 200-206, 1999) that discusses water requirements:

“To be well hydrated, the average sedentary adult man must consume at least 2,900mL (12 cups) fluid per day, and the average sedentary adult woman at least 2,200mL (9 cups) fluid per day, in the form of non-caffeinated, nonalcoholic beverages, soups, and foods. Solid foods contribute approximately 1,000mL (4 cups) water, with an additional 250mL (1 cup) coming from the water of oxidation.”

The paper also states that "Dehydration of as little as 2-percent loss of body weight results in impaired physiological and performance responses."

To summarize, it appears that sedentary individuals require approximately 9-12 cups of water per day (4 cups come from food, 1 cup from metabolism and 4-7 cups from fluid intake). The lower numbers are for females and higher numbers for males. Personally, I like the higher numbers for both males and females alike.

Unfortunately there is very little research concerning how much fluid is actually needed for those who workout intensely. So, add more if you workout, but do so within reason. Now, with glasses held high, let’s toast to your new healthy body.

Evelyn
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Joined: Wed Mar 06, 2019 2:18 pm

Re: How much weight can you lose with gastric bypass surgery?

Unread post by Evelyn » Tue Mar 12, 2019 3:12 pm

Hey thanks for posting this. I never knew the reasons behind it either.

Camila
Posts: 17
Joined: Tue Mar 12, 2019 4:31 pm

Re: How much weight can you lose with gastric bypass surgery?

Unread post by Camila » Fri Mar 22, 2019 12:06 pm

Very helpful, thanks for posting!

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