Bookmark Website  | Free Registration  | The Team
The Lounge  | Champions  | The Wire |  Schedule |  Audio  |  Arcade  |  The Top Ten  |  Historical  |  Email  |  Video

Dietary Recommendations After Gastric Bypass Surgery


When obesity gets out of hand, unresponsive to dietary, lifestyle and medical interventions, drastic measures are needed to cut down calorie intake. Morbid obesity with a BMI (body mass index, a measure of malnutrition) above 40 kg/m2 is an indication for surgical procedures such as gastric bypass surgery. Gastric bypass is now a well-trodden path to lower BMI's and achieve healthier lives in 18 months or so. First used in the 1950's, only the last two decades have seen safe and successful gastric bypass surgery with any consistency. Half a century of meticulous observations and patient follow-up has led to the formulation of strict guidelines to ensure desired results.

Gastric bypass is a series of steps initiated starting with the decision to undergo the procedure. Identifying existing nutritional deficiencies is the first step towards surgery. Vitamin and mineral deficiency often occur in obesity, and need to be addressed before the procedure. The surgery itself has two goals; to reduce the volume of the stomach and shorten the food transit time in the intestine. After surgery the stomach cannot receive large meals or participate in digestion. This by itself limits food intake. Food also bypasses a large part of the intestine and has little time to interact with liver and pancreatic enzymes. As a result, nutrition absorbed from diet drops drastically. In most types of gastric bypass surgeries done today only 50 cm of the intestine is allowed to function in normal fashion. Compare this to food absorption taking over 7 feet of small and large intestine before surgery.

With such a radical reduction in the capacity to assimilate food, the postoperative period can be rather tricky. Only clear fluids are advised for the first two days while waiting for gut to recover. The gut is then re-trained for about two months before it can go back to a normal diet. During the recovery period the limitations imposed by the gastric bypass procedure should be kept in mind. After surgery the stomach has become much smaller and can only hold approximately eight ounces at a time. The stomach has also lost its ability to pulverize food to initiate digestion. Consequently the appropriate diet for postoperative recovery would be a liquid to soft solid diet that can be taken six to eight times a day in small quantities. Nutrient fluids are preferable since they can provide hydration and energy at the same time. Non-nutrient fluids are best avoided or at least restricted to in-between meals.

The type of nutrient chosen also deserves due consideration. The chosen macronutrient should not affect the stomach emptying time while providing enough energy to recover from the surgery. In this regard carbohydrates and fats are at either end of a spectrum and neither is suitable. Carbohydrates pass through very quickly and produce very uncomfortable symptoms like vomiting, bloating, diarrhea and sweating. Fat slows the gut considerably, and it is oftentimes ruled out because of its direct link to obesity. Research suggests that the macronutrients of choice after gastric bypass surgery are proteins. Proteins do not change gastric transit time significantly. A high-protein diet can also provide enough amino acids for repair and growth after a major surgical procedure like gastric bypass.

Apart from these advantages, a high-protein diet has a special role in the treatment of obesity. Gastric bypass restricts excessive calorie intake to prevent weight gain. However, accumulated adipose tissue also needs to be expended to achieve the desired weight loss. The basal metabolic rate (energy expenditure) should be increased simultaneously to burn stored fat and reduce BMI. This can be achieved by a high-protein diet since proteins in diet increase the basal metabolic rate by stimulating protein synthesis. Observations made during the postoperative period also confirm this proposition. Unless a high-protein diet is provided, weight loss often ceases despite controlled consumption.

Currently, a protein intake of up to 90 grams per day is recommended in the post-operative period. Given the trauma and the limitations the gut is subjected to during the procedure, such a high protein intake can be difficult to maintain. The gut is hardly ready and often fails to assimilate proteins and energy from traditional foods and diets. Therefore, a sugar-free fluid protein concentrate with a high bioavailability, adequate essential amino acids, vitamins and minerals is the most appropriate diet in the post-operative period. Digestion is further facilitated if the protein concentrate is already pre-digested, or hydrolyzed. Such a nutrient fluid can simultaneously supply concentrated energy and hydration even when taken in small quantities.

After recovery and return to a normal diet divided over 3 to 4 meals per day, a high-protein concentrate is still a relevant supplement between or during meals. The protein supplement continues to provide thermogenic action necessary to lose weight essential to sustain weight loss. It also compensates for any amino acid deficiency in the diet and maintains nutrition on bad days not uncommon in the months and years after a major surgery.

ABOUT PROTICA

Founded in 2001, Protica, Inc. is a nutritional research firm with offices in Lafayette Hill and Conshohocken, Pennsylvania. Protica manufactures capsulized foods, including Profect, a compact, hypoallergenic, ready-to-drink protein beverage containing zero carbohydrates and zero fat. Information on Protica is available at http://www.protica.com

You can also learn about Profect at http://www.profect.com

REFERENCES

1. Kellum JM, DeMaria EJ, Sugarman HJ. The surgical treatment of morbid obesity. Curr Prob Surg. 1998;35:791-858.

2. MacLean LD, Rhode BM, Nohr CW. Late outcome of isolated gastric bypass. Ann of Surg. 2000. 231:524-528.

3. Nutritional Implications of Bariatric Surgery: Perspectives of Practitioners Audiotape/Handout packages available post-conference.

4. Weight management-Position of ADA. J Am Diet Assoc. 2002;102:1145-1155

5. Faintuch J, Matsuda M, Cruz ME, et al. Severe protein-calorie malnutrition after bariatric procedures. Obes Surg 2004; 14:175-181.

6. Alvarez-Leite J.I. Nutrient deficiencies secondary to bariatric surgery. Curr Opin Clin Nutr Metab Care 7:569-575.

Copyright Protica Research - http://www.protica.com


MORE RESOURCES:

CBS News

New Weight Loss Drug Saxenda: FAQ
WebMD
24, 2014 -- A drug that treats type 2 diabetes has gotten FDA approval for another use: weight loss. Saxenda is the fourth drug for weight loss OK'd by the agency since 2012. It's already available in a lower dose as Victoza for type 2 diabetes ...
New weight-loss drug wins FDA approvalCBS News
Saxenda Approved for Weight LossU.S. News & World Report
New Weight Loss Drug Approved By FDA: Compare Diet Pills, Diets, And ...The Inquisitr
News-Medical.net -Medscape -Bloomberg
all 126 news articles »


MLive.com

Kalamazoo couple turns weight loss surgery into a joint project and loses 350 ...
MLive.com
Through the years, they both tried weight loss plans, even dieting together before they got married. But, diets never really seemed to work. "I've tried Weight Watchers and Atkins and just low-cal and low-fat. I did Weight Watchers maybe six times. I'd ...



KABC-TV

Weight-loss supplements pose major health risks, study says
KABC-TV
But a new Consumer Reports survey of about 3,000 Americans shows one in four has used weight loss supplements. The survey also found more than 90 percent couldn't lose the weight they wanted and keep it off. About half reported at least one side effect ...



Fox News

The 10 biggest food and weight loss stories of 2014
Fox News
I can't believe it's been a year since I compiled my last round-up, but it's that time again! As a research junkie, I think this year's crop of studies in the areas of nutrition and weight management have been particularly fascinating. Here are my top ...
10 Biggest Food and Weight Loss Stories of 2014TIME

all 2 news articles »


Weight Loss Post-Holiday – It's That Time Of Year!
The Inquisitr
It comes this time each year – a realization of the need for post-holiday weight loss. Christmas is past, favorite carols are fading, and the New Year's Holiday is looming. In a few days, the last holiday empty cookie tray will get tossed, the fruit ...



Dallas Morning News (blog)

Dallas Cowboys DE Jeremy Mincey credits weight loss of 25 to 30 pounds this ...
Dallas Morning News (blog)
Dallas Cowboys defensive end Jeremy Mincey (92) rushes Houston Texans quarterback Ryan Fitzpatrick (14) during the Houston Texans vs. the Dallas Cowboys NFL football game at AT&T Stadium in Arlington on Sunday, October 5, 2014.

and more »


Sanford opens weight loss center
AberdeenNews.com
Profile was designed using a large amount of clinical research to ensure a sustainable means to healthy weight loss, according to the release. A clinical and scientific advisory board comprised of Sanford Health physicians and researchers oversaw the ...

and more »


Bidness ETC

FDA Approves New Weight-Loss Drug
Philly.com
(HealthDay News) -- A new, injectable weight-loss drug has been approved by the U.S. Food and Drug Administration. The agency on Tuesday approved Saxenda (liraglutide) for adults who are obese or for those who are overweight and have at least one ...
Novo Nordisk (NVO) Wins FDA Nod For Weight-Loss InjectionBidness ETC
New Weight Loss Drug Saxenda Approved By FDAHeadlines & Global News
FDA Formally Clears New Injectable Weight Loss DrugViral Global News
Healio
all 13 news articles »


Healthy snacks can equal weight loss
Quad City Times
Need some snack ideas that will help you lose weight in the new year? Finding simple, tasty food options that won't break the calorie bank doesn't have to be so hard. Healthy snacking is actually just that: healthful. Snacking is a great pick-me-up ...



2 Post Holiday Weight Loss Tips That Work!
Rochester Democrat and Chronicle
Get some exercise. The very next day, get up and take a walk. You have 24 hours to do some damage control. Your body stores glucose in your muscles for energy if you don't use it then it will be moved and deposited in your fat storage (AKA hips, thighs ...

and more »

Google News


Advertisement



Section Site Map - Submit News - Feedback - Comments - Advertise with Us

Copyright 2006 Luminati Inc. All rights reserved.