Your Diet Right After Bariatric Surgery (2024)

You will follow a strict liquid diet in the days and weeks following bariatric surgery. This is what you should expect.

Level 1 at the Hospital

Immediately after surgery, you’ll follow the Level 1 clear liquid diet that’s prescribed by your surgeon. This is what will be provided for breakfast, lunch and dinner in the hospital following your surgery:

  • 4 ounces broth
  • 4 ounces protein juice
  • 4 ounces decaffeinated coffee/tea
  • 4 ounces sugar-free Jello

You CANNOT have the following immediately after surgery:

  • Soda or carbonated beverages
  • Cream or sugar for coffee
  • Salt packets
  • Lemon packets

In addition, you’re not allowed to use straws. It’s recommended that you SLOWLY sip the liquids provided.

Level 1 at Home

After you’re discharged from the hospital, you’ll continue a Level 1 clear liquid dietas prescribed for the type of surgery you had. This is usually 1 to 3 days for people who have had lap band surgery or laparoscopic sleeve gastrectomy, and up to 6 days for gastric bypass or duodenal switch surgeries.

You should eat about 4 times a day. Each meal should equal a TOTAL of 2 to 4 ounces (1/4 to 1/2 cup) of liquids.

Your at-home clear liquid diet may include:

  • Vegetable, chicken or beef broth (should be low-fat or fat-free). You can add in a beaten egg white or Eggbeaters to boiling broth for a healthy “egg drop” soup.
  • 100% clear fruit juice (apple, cranberry, grape) diluted with water (2 ounces of juice to 2 ounces of water)
  • Sugar-free Jello
  • Crystal Light or sugar-free drinks
  • Sugar-free popsicles
  • Decaffeinated coffee or decaffeinated tea WITHOUT creamer
  • Skim milk is allowed in coffee/tea and can be mixed with protein supplements; to maintain your health, it’s very important to drink your protein supplements
  • Sugar substitutes such as Splenda or Equal are allowed in moderation

It’s recommended that you SLOWLY sip liquids.

You CANNOT have the following:

  • Soda or carbonated beverages
  • Cream or sugar for coffee/tea
  • Fruit nectars or juices with pulp
  • Sports drinks such as Gatorade or Propel, or any drink with more than 5 calories per 8-ounce serving

Moving to Level 2

Your surgeon will let you know when it’s okay to move to a Level 2, full-liquid diet. You usually follow this diet for about 4 weeks after surgery.

What to expect

  • You should eat about 4 times a day and sip water throughout the day.
  • Each meal should equal a TOTAL of 2 to 4 ounces (1/4 to 1/2 cup) of liquids.
  • Take your time and drink/eat meals over 20 minutes; time yourself with a kitchen or phone timer.
  • Drink at least 1 high-protein supplement a day until you move toward protein intake of at least 40 to 60 grams of protein a day.

A full-liquid diet includes:

  • Cream of wheat, cream of rice, plain, strained (baby) oatmeal, grits or farina; thin cereals with skim or 1% milk, as needed
  • Strained/pureed low-fat cream soups without chunks of meat or vegetables; thin soups with skim or 1% milk, as needed
  • Broth-based soup; add in a beaten egg white or Eggbeaters to boiling broth for a healthy “egg drop” soup
  • Sugar-free and low-fat or fat-free regular or Greek yogurt, without fruit
  • Unsweetened applesauce and fat-free or low-fat whipped cottage cheese or ricotta cheese, pureed together

You should avoid the following:

  • Fruit nectars or juices with pulp
  • Sports drinks such as Gatorade or Propel, or any drink with more than 5 calories per 8-ounce serving
  • Soda and carbonated beverages
  • Milkshakes
  • 2% or whole milk, cream, half and half
  • Alcohol

In addition, you shouldn’t have more than 8 to 16 ounces of regular coffee or tea. And, you can’t drink 15 minutes before a meal or for 30 to 60 minutes after a meal.

Your Diet Right After Bariatric Surgery (2024)

FAQs

Your Diet Right After Bariatric Surgery? ›

Diet for the First Two Weeks Post-Surgery

How soon after bariatric surgery can you eat solid food? ›

Solid foods

After about eight weeks on the gastric bypass diet, you can gradually return to eating firmer foods. Start with eating three meals a day, with each meal consisting of 1 to 1-1/2 cups of food. It's important to stop eating before you feel completely full.

What can I eat 1 week after gastric sleeve? ›

During your first week after surgery, you will be restricted to clear liquids. In addition to water, you can drink clear broth, decaffeinated beverages, and the sugar-free versions of drink mixes like Kool-Aid and Crystal Light.

Is there anything you can never eat again after bariatric surgery? ›

But what can you not eat after gastric bypass? Firstly, avoid foods that are high in sugar or fat. This could include bread, pasta, pizza, and cookies. And avoid carbs or excess sodium while you're still healing, for several weeks.

What is the Stage 1 bariatric diet? ›

Stage 1: Bariatric Clear Liquid Diet

This diet is designed to keep you hydrated without stressing out your stomach. At this time, you may be nauseous and fill up quickly. You will need to sip slowly on sugar-free, non-carbonated, caffeine-free clear liquids.

What is the first meal after bariatric surgery? ›

You will receive clear liquids such as juices, Jell-O and broth as your first meal following surgery. Juice and Jell-O are high in sugar content, but your portions will be very small at this stage. Gradually increase the amount you drink at each meal as you can tolerate it.

How much weight do you lose the first week after gastric bypass? ›

Based on the study conducted by the University of Michigan, the average weekly weight loss of gastric bypass patients is around 5 to 15 lbs for the first two to three months. It starts to taper off to 1 to 2 lbs a week after six months.

What are the hardest days after gastric sleeve? ›

What are the hardest days after weight loss surgery? The day after surgery might be the hardest since you may have discomfort from your surgery and won't be able to eat solid food.

Can I eat scrambled eggs a week after gastric sleeve? ›

The general rule is that immediately after surgery, you should have 2 weeks of liquids followed by 2 weeks of soft/pureed food before returning to solids. Liquids can include meal replacement shakes or soups and purees must include very soft foods such as overcooked veg, runny scrambled eggs or semolina.

Can I eat mashed potatoes 10 days after gastric sleeve? ›

In the first, you can continue eating any of the foods from Stage 1, plus pureed fruits and vegetables, oatmeal, mashed potatoes, cottage cheese, and low-fat dairy products. Beginning on day 11, patients may also consume soft foods, including meatloaf, baked fish, tuna and egg salad, cheese, and canned fruits.

Can you ever eat pizza again after bariatric surgery? ›

If you frequently enjoy a slice of pizza, you may wonder, 'When can I have pizza after gastric bypass surgery? ' Fortunately, you do not have to eliminate pizza from your diet forever after a bypass surgery, but you should wait for at least 6 weeks before you can comfortably enjoy your delicacy.

What foods make you dump after gastric bypass? ›

“Sugar dumping” can happen when you eat excessive amounts of sweets. The sugar can lead to hypoglycemia, causing you to feel ill or even pass out. “Fat dumping” leads you to the bathroom when you eat more fat than your body can absorb. The solution for both is prevention: Don't eat sweets, and severely limit your fats.

Can I drink co*ke zero after gastric sleeve? ›

In general, it is not recommended to consume any form of carbonated beverages for at least the first year following gastric sleeve surgery.

What is the 30 rule for bariatric surgery? ›

The “30-minute rule”: After surgery, you have a smaller stomach, so you should not drink any liquids for 30 minutes before a meal, during the meal, and for 30 minutes after a meal. Not drinking prevents you from feeling full too quickly before you've finished eating your protein.

Can you eat bananas on a bariatric diet? ›

Eat small, frequent meals (three to six small meals a day). Eat slowly to avoid stomach problems. Choose foods that can be pureed, such as: Fruits: apple, pears, peaches, apricots, pineapples, bananas, melons.

What is the easiest bariatric surgery to recover from? ›

A sleeve gastrectomy is one of the safest weight loss surgeries. It's usually done laparoscopically (a minimally invasive procedure done with a small camera as a guide), so you'll have smaller incisions and quicker healing than with some other surgeries.

How long does it take for the stomach to heal after gastric bypass? ›

What is the recovery time from gastric bypass surgery? You'll likely spend a day recovering in the hospital, then a few weeks recovering at home before you feel ready to go back to work. You may need to avoid strenuous activity for up to six weeks, and it may take up to twelve weeks to resume a normal diet.

How long after bariatric surgery can I have pasta? ›

So, when can you eat pasta after gastric sleeve? The twelfth week marks the start of the last phase toward attaining your weight loss goal and will differ in length among individuals. You will start adding most of the foods into your diet, including all fruits and lean meat, and then… Pasta!

How do you reintroduce food after a liquid diet? ›

To help your body adjust to eating solid foods again, it is important to:
  1. Cut them into bite-sized pieces and chew thoroughly.
  2. Eat meals two to three hours apart so that about four to six meals are consumed each day.
  3. Continue drinking 40 to 64 ounces of liquid every day (the majority of which should be water).

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