Here, you will find:
Gastric Bypass & Sleeve Gastrectomy
Post op Diet Stages
Offered Dietitian Appointment Schedule*
There are two main surgical options which help you to lose weight and become healthier. They are gastric bypass and sleeve gastrectomy.
Hospitalization period is 2-4 nights after gastric bypass or sleeve gastrectomy.
Sleeve gastrectomy is based on the reduction of stomach volume.
This restrictive method is more physiological than others.
Lowering the level of Ghrelin hormone provides the feeling of satiety.
The aim of a gastric bypass operation is to reduce the amount of food intake by reducing the stomach volume and connecting the small intestine to the small stomach pouch, this aims to shorten the path of food that is absorbed.
Bariatric surgery is your supporter. You must commit to a healthy lifestyle (proper eating habits, exercise, behaviors) to stay successful forever.
Make Eating Mindful
Separate Fluids From Solids
Most people need to exercise at least 4 hours each week to maintain weight loss. You can even break your exercise up into smaller amounts of time during the day. It's about finding what works best for you.
Here are some ideas for increasing your physical activity before and after surgery.*
What are the benefits of exercise besides weight control?
* Remember to check with your primary care doctor or surgeon before starting any strenuous exercise. However, you may start walking right after surgery. Also you may swim and all other exercises 4 weeks after surgery.
Post-Op Diet Stages
Stage 1 : Fluids - Starts in hospital
Stage 2 : Protein Shakes and soup - Starts in hospital
Stage 3 : Soft Textures - Starts 14 days after surgery
Stage 4 : Regular Textures - Starts at 5 th week after surgery
Post-Op Diet Stage 1 : Fluids
Starts: In the hospital on the first day after surgery.
What to do: Sip sugar-free, non-carbonated, non-caffeinated fluids throughout the day.
Example of fluids
You should consume warm drinks !!
You will be in the hospital for this entire diet stage and you will be given the right types of fluids. The nurses will guide you to sip enough fluids during the day.
Stage 1 Key Points:
Pace yourself throughout the day.
Some people never tolerate carbonation after surgery.
Post-Op Diet Stage 2: Protein Shakes and Soup
Starts: In the hospital on the third day after surgery.
Lasts for: 14 days
What to do: Sip fluids throughout the day. Eat soup and broth 3-4 times. Drink a protein shake 2 times per day. If you haven’t finished the protein shake after one hour, stop drinking it. Fluids are still the number one priority.
Fluid Goal: 48-64 ounces(1500ml) (fluid guidelines listed in stage 1). This does not include your protein shakes.
Protein Goal: 60-70 grams (number of shakes per day depends on the brand of the protein shake)
It is normal to not reach your fluid and protein goals right away. Just do your best each day.
Protein Shake Nutrition Guidelines Each protein shake* should have:
* A typical protein shake is 8-11 ounces (235-325 ml).
Post-Op Diet Stage 2: Protein Shakes (continued)
Lactose is the natural sugar in milk. Sometimes after surgery, your body cannot digest this sugar. This causes problems like nausea, cramping, bloating, gas, and/or diarrhea. It is not normal to have these problems from drinking protein shakes. You might be experiencing lactose intolerance.
What if you are experiencing lactose intolerance?
Having Trouble with Protein Shakes?
If the taste is bothering you:
If the smell is bothering you:
If you need to chew:
Stage 2 Key Points:
08:00 1 CUP MILK (OIL OR LACTOSE FREE) + PROTEIN POWDER
10:00 1 CUP FRESH FRUIT JUICE OR VEGETABLE JUICE
12:00 1 CUP MEAT / CHICKEN JUICE (LEMON CAN BE DRIZZLED)
14:00 1 CUP AYRAN (FLOURED YOGHURT)
16:00 1 CUP MILK (OIL OR LACTOSE FREE) + PROTEIN POWDER
18:00 1 CUP MEAT / CHICKEN WATER SOUP (LEMON DRIZZLE)
20:00 1 CUP MILK (OIL OR LACTOSE FREE) + PROTEIN POWDER
22:00 1 CUP FRESH FRUIT JUICE OR VEGETABLE JUICE
Post-Op Diet Stage 3: Soft Textures
Starts : 14 days after your surgery date
Lasts for : 30-35 days
What to do : Keep sipping fluids. Have a protein shake or eat a protein food 4-5 times per day. Start taking vitamin and mineral supplements. Please only eat the foods listed on this page.
Fluid Goal : 48-64 ounces(1300ml-1700ml) (fluid guidelines listed in stage 1)
Protein Goal : 60-70 grams/day
Third Week Foods you can consume (In addition to the first and second weeks) !!!
* Prepared without flour and tomato paste, using blender. Ex: Fish soup, lentil soup, chicken broth soup, vegetable soup, yogurt without rice soup etc…
Stage 3 Key Points :
STAGE 3 SAMPLE MENU 1
8 AM 150-300 ml skimmed milk with 1 tablespoon oats.
- Instead of skimmed milk also prefer lactose-free milk .
10 AM 100-200 ml skimmed milk with 1 tablespoon of protein powder.
NOON 12 150-300 ml yogurt with 1 serving of fruit puree.
14 PM 100-200 ml apple puree.
18 PM 150-300 ml meat blender soup / 100 ml fruit puree.
20 PM 100-200 ml skimmed milk with 1 tablespoon of protein powder.
STAGE 3 SAMPLE MENU 2
8 AM Omelette ( 1 egg) (low fat)
10 AM 100 ml ayran / lactose free milk
NOON 12 Vegetarian puree and salmon puree (60 gr.)
14 PM Pineapple puree
18 PM Meat blender (60 gr.) + Vegetarian puree
20 PM 100-200 ml skimmed milk (lactose free)
Post-Op Diet Stage 4: Regular Textures
Starts: 5 weeks after your surgery date
Last for: Lifelong, but your meal plan will change over time.
What to do: Keep sipping fluids. Use the meal plan below as guidance for a balanced diet. Keep taking vitamin and mineral supplements.
Fluid Goal: 48-64 ounces (1300-1700 ml) (fluid guidelines listed in stage 1)
Protein Goal: 60-70 grams/day
8 cups of fluid _ _ _ _ _ _ _ _
8 protein servings _ _ _ _ _ _ _ _
2 vegetable servings _ _
2 fruit servings _ _
1 dairy serving _
3 starch servings _ _ _
How do I start in Stage 4?
Possible ‘Problem Foods’
Your stomach can be sensitive for 3-6 months after surgery, and sometimes longer.
The following foods have unique textures that may be difficult to tolerate if eaten too soon.
Protein: Tough red meat, hamburger, lobster, scallops, clams, shrimp
Fruits: Stringy, thick skins, peels (like oranges, grapes, pineapple)
Vegetables: Stringy, fibrous (like asparagus, peapods, celery)
Starches: Rice, pasta, doughy breads, popcorn
Sample Meal Plans
Eat protein foods first, then vegetables or fruits and eat starches last.
Use fats as a flavoring or to keep foods moist.
Listen to your stomach
Hunger may increase
Be aware of picking or grazing
Work towards a balanced diet
These are examples to show you how the amount you can eat will change over time. Each person can choose their own foods based on their preferences and their tolerance.
Possible Problems and Solutions
We don’t expect all of these problems to happen to you, but if they do, we want you to know how to solve them. It is helpful to keep a record of anything unusual that occurs and what you did before and after it happened.
Dizziness, Headaches, Lightheadedness, Dark Urine (Signs of Dehydration)
Drink fluids with electrolytes (like Propel Zero, G2, Powerade Zero).
Possible Problems and Solutions (continued)
Nausea and/or Vomiting
Vitamin and Mineral Supplements:
If you had a sleeve gastrectomy, you need the supplements at least 3 months. If you had a bypass, you will need to take vitamin and mineral supplements for the rest of your life after surgery. We recommend that you start with chewable or liquid supplements until stage 4. Over time, if you are comfortable swallowing a ‘petite’ tablet or cutting a pill in half, you can swallow your supplements.
Multivitamin with Minerals:
Some patients may need extra vitamins and minerals, such as iron, vitamin D, or B vitamins. We will check your vitamin and mineral levels regularly through lab tests and discuss extra supplements as needed.
We wish you a happy and healthy life!
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