The Process...

First Step: Completing our online medical appliction

Once you have completed our online medical application HERE, our coordinator will get in touch with you within 24 hours to help you start the process.  

Second Step: $500 Deposit and Scheduling your travel

Once you've secured your surgery date with the $500 deposit (deducted from total the surgery price), you will need to book your travel.  Our coordinator will give you the travel logistics guide to ensure you arrive and depart at the best times. 

Starting Your Preop Diet...

If your BMI is higher than 50 you will need to start your preop diet 4-5 weeks prior to your procedure.  

If your BMI is below 50 you may start 2 weeks prior to your surgery date. 

For bypass patients it is mandatory to do the laxative. For gastric sleeve it is only optional. 

Cervantes PreOperative Diet

Prior to Surgery
⦁ Do not smoke 30 days prior to surgery

⦁ Start taking a probiotic 6 weeks prior to surgery or as soon as possible.

Follow Pre-Op Diet below:

Protein powder/drinks – Gastric Sleeve Surgery Preoperative Diet:

You may purchase these in any health food store or many grocery stores. Please be sure it contains at least 20 grams of protein per serving. Sugar should be half the grams or less than protein- if you have 20 grams of protein, it should have less than 10 grams of sugar

General Overview – Gastric Sleeve 

Surgery Preoperative Diet:

1. 2 – 3 protein shakes per day
2. You can eat as many raw or cooked vegetables as you want (All vegetables

are included except peas & corn)

3. 2 servings of 4 oz. of a lean protein (chicken, turkey, fish, lean ground beef, eggs, tofu, beans of any kind except baked or BBQ beans. (you can have more than 4 oz.; this is the minimum per serving)

4. 1 – 2 servings of a healthy fat (salad dressing, olive oil, nuts, avocado, olives)

5. You can add 1⁄2 cup of frozen berries or 1⁄2 banana to your protein shake

6. You can make your shake with unsweetened vanilla almond milk or coconut milk (no regular milk- too much sugar)

7. Absolutely NO bread, rice, pasta, potatoes, sweet potatoes, yams, cereals, oatmeal, popcorn, refined grains, corn, peas, or sauces with sugar

Breakfast: 1 protein shake

Mid-morning snack: 1 protein shake

Lunch: Raw or cooked vegetables (ok to add one TBSP olive oil or butter spray to veggies) and 4 oz. lean meat. Example: Tilapia with baked broccoli seasoned w/ olive oil and slivered almonds

Dinner: Salad with Protein (chicken, fish, egg, etc.), small amount of no or low sugar dressing (preferably olive oil & vinegar or Lemon).

Evening Snack: 1 protein shake (if needed).

You may also add 1 TBSP chia seeds to your shakes or take psyllium husk to help you stay satisfied throughout the day.

The purpose of this diet is to help shrink your liver prior to surgery by

depleting stored glycogen.

* You may at this time drink other drinks as long as they have NO SUGAR

Behavior/Lifestyle changes – Gastric Sleeve Surgery Preoperative Diet:

⦁ Discontinue ALL carbonated beverages.

⦁ Discontinue ALL beverages with caffeine.

⦁ Begin a routine exercise program (consult with your physician first).

⦁ Cut food into SMALL pieces and practice chewing foods VERY well.

⦁ Discontinue ALL over the counter Herbal supplements.

⦁ VERY IMPORTANT: Stop drinking 30 minutes prior to eating and DO NOT drink until 30 minutes after a meal.


⦁ Begin the practice of NOT drinking with meals.

7 Days Prior to Surgery – Gastric Sleeve Surgery Preoperative Diet

⦁ Some medications may need to be discontinued before surgery depending on the instructions of your physician.

⦁ Specific medications to discontinue: Coumadin, Plavix, Aspirin, Ibuprofen, Motrin, Advil, Nuprin, Aleve or any other non-steroidal anti-inflammatory medication. **Remember this also includes baby aspirin and most arthritis medications. As these can all cause stomach irritation and possibly more bleeding post operatively.

⦁ Discontinue birth control and supplemental hormones

⦁ Discontinue Vitamin E

⦁ For headache or minor pains you may use Tylenol.

⦁ Do not take any herbal medications/remedies.

⦁ Diabetes Patients:

⚪ May continue to take medication up to the day of surgery. Be mindful, medications and amounts may change due to diet and weight loss change prior

to surgery.

  • ⚪  MUST consult with their doctors about medication use.
  • ⚪  MUST check sugar levels at home. If sugar is above 150 call your primary care physician immediately.
    3 Days Prior to Surgery – Gastric Sleeve Surgery Preoperative Diet:
    ⦁ Complete bowel prep by taking laxative (only once) on the 3rd night prior to surgery

2 Days Prior to Surgery-Begin Clear Liquid Diet 

⦁ Consume only clear liquids:

⦁ Water or Flavored Water. 

Clear broths: Chicken, Vegetable, or Beef.

⦁ Need to have 2 Greek yogurts per day (may be flavored but no pieces of fruit)

– this helps with post healing and providing healthy bacteria in your gut. Plain

Greek yogurt is your best option or something similar

8 Hours Prior to Surgery – 

Absolutely nothing to drink after the midnight preceding surgery or 8

hours prior to your surgery.

⦁ Absolutely NO medications unless directed by the doctor. (If you have been

pre-approved to take any medications by your doctor leading up to surgery, you

may take small sips of water for swallowing.)

Please bring ALL your prescribed medications (whether you are currently

taking them or not) in properly labeled pharmaceutical bottles for

documentation during Pre-Op testing. Do NOT take any medications after

surgery until you have consulted with the doctor(s) and gotten approval.

Arriving at the hospital....

Finally!  Your new life is getting ready to start!  This is the week you've been waiting for.  48-24 hours prior to your arrival you will be contacted by our driver to confirm your arrival date and time.  

The night before your surgery Cervantes Bariatric will take care of your overnight accomodations to help you relax and get settled for your surgery the following day. 

The day of surgery: 

Once you arrive at the hospital, you will fill out some paperwork and get registered.  You will also have your prep evaluations done (blood work and EKG).  

You will be escorted to your hospital room where you will put your gown on and start your IV.  Our internist will speak to you about your test results.  Then you will finally meet Dr. Cervantes who will explain the process of your surgery procedure.