Diet and Eating Guidelines
After Stomach Bypass
A surgical weight loss bypass operation
(such as roux-en-y or duodenal switch), forces you to make immediate changes
to your daily eating habits, both in the amount and type of foods chosen
as well as your general eating and chewing habits. Guidelines concerning
these new dietary and nutritional requirements will be given to you and
fully explained before and after your bypass operation, because your post-operative
diet plays an important role in the success of your bypass surgery.
Stages of Gastric Bypass Diet
Eating after bariatric bypass usually progresses
stage-by-stage, as follows:
Diet 1 - Clear Liquids Only
Commences about 1 day after bypass - lasts for about 2 days.
Diet 2 - Full Liquid Eating Plan
Commences about 2 days after bypass. Full liquid diet lasts 10-14 days.
Diet 3 - Semi-Solid (Puree) Eating Plan
Commences about 2-3 weeks after bypass - lasts upwards of 5 weeks.
Diet 4 - Low-Fat Solids Eating Plan
Commences on the advice of your bariatric physician - lasts for life.
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Diet 1 - Clear Liquids
You will be placed on a complete liquid diet plan for the first 3 weeks
following surgery. For the first 1-2 days after bypass, you must take
sips of clear liquids only and be aware of feelings of fullness. Appropriate
fluids include: diluted fruit juice, water, sugar-free jello, broth, etc.
Diet 2 - Full Liquids
After 1-2 days, if no problems are experienced with clear liquids, the
gastric bypass diet progresses (on the advice of your bariatric physician)
to milk, strained cream soups and commercial protein supplements like
diet Carnation Instant Breakfast. Typically this stage of the diet
commences before discharge from the hospital and lasts for 1 to 2 weeks.
Regarding nutrition, your dietitian or nutritionist will advise you as
to the type and quantity of liquid supplements required to meet your nutrient
needs during this early post-operative period.
Sample Menu of Full Liquid Diet
- Eat five times a day.
- Always begin with the protein source.
- Eat slowly.
- Stop when you feel full.
- Avoid extra liquids during meals.
Breakfast
1/2 Cup Carnation Instant Breakfast (no sugar added) made with skim milk
1/2 Cup Sugar free jello
Mid-Morning
1/2 Cup diluted fruit juice
Lunch
1/2 Cup smooth no sugar added, low fat “light” yogurt
1/2 Cup broth
Mid-Afternoon
Sugar free Popsicle
Dinner
1/2 Cup strained cream soup made with skim milk
1/2 Cup low sodium V-8 juice
Between Meals
Have at least 4 cups low calorie liquids, sipped slowly during the day.
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Note: Gastrointestinal weight loss surgery,
whether bypass or stomach banding, to reduce severe clinical obesity is
a serious undertaking requiring detailed consultation with your doctor
and bariatric physician. In particular, it necessitates significant lifelong
changes to patients dietary and eating habits.
Return to Diet
Information and Weight Loss Diets
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