Pre-Op and Post-Op Diets 2018-01-29T20:01:10-05:00
Pre-Op and Post-Op Diets

Pre-Op and Post-Op diets are necessary for the success of bariatric surgeries. There is no point in having surgery if you are not going to follow directions before and after surgery. You may think surgery is a way to avoid dieting, but it is not. Diet is extremely important when you are undergoing a bariatric procedure. Most people that undergo these procedures are morbidly obese. Any surgery at that weight is dangerous. Your weight puts you at a higher risk for complications. Before surgery, the doctor wants you to reach a certain weight goal. Once you reach this goal, then the procedure can begin.


Dieting is not easy. It is not easy giving up all those feel-good foods for rabbit food. Food can be very comforting. It can take a bad day and turn it into a good day. If you are sad, you may go for that bag of chips or some ice cream. Sacrificing all these things is not a fun process. Most diets today require you to take out meat, sugar, and starch. If you are a bread eater, that can be especially difficult. Diets substitute these options with low-fat or nonfat foods. You may have to trade in cheeseburgers for salad and french fries for fruit. As you change your diet, you should start feeling a change in how you feel. The more you do it, the more your body begins to crave good things, instead of bad things. It is also good to add in cheat days now and then. A cheat day can help keep you on track. When dieting it is also best to have a dietician or someone who can help you meal prep and keep you on track.

Pre-Op Diet

Before a bariatric procedure, the surgeon will put you on what is called a pre-op diet. The pre-op diet helps you to lose weight before the procedure. The more weight you lose, the fewer complications you will have. Your risks also lower tremendously. The amount of weight you need to lose is different for everyone. Sometimes the surgeon wants you to lose about 25lbs. Other times the surgeon may desire a weight loss of over  100lbs. It is all about your safety. There are many benefits of preoperative dieting. One of the greatest benefits is a decrease in liver size. Decreasing the fat content of the liver allows it to operate more properly. A proper liver function is important to your health. Lessening the fat also helps with the surgery. It is very difficult for the surgeon to operate when fat is covering all the organs. Dieting will also help decrease the time it will take to complete the surgery. When there is not as much fat in the way blocking the view of the surgeon, surgery is easier. There are also not as many risks post surgery. If you can discipline yourself to diet before surgery, doing it after surgery becomes much easier. It will not be as much of a struggle because you have already been in the habit of doing it. Right before surgery, the doctor may put you on a liquid diet. The liquid diet helps with nausea after surgery.

Post-Op Dieting

After surgery, it is important to stay on a strict diet. The worst thing you can do is have surgery and put all the weight back on because you cannot adhere to a diet plan. Once the surgery is over, the real work begins. The first month after your surgery is crucial. You must stick to a strict diet. No fast food and no cheating. Dieting properly helps reduce your post-op risks. The first week, you will be on all liquids. Week two includes liquids and protein. Week three will be pureed foods. You can eat soup, scrambled eggs, and soft fish and veggies. Week four you can start a regular diet. Add in sweet potatoes, mashed potatoes, fish, and chicken. Snacks should be healthy. You should stay away from soda, desserts, and fried food. From week five and on, you have to make dieting a daily thing.

What the Diet Consists Of

Your diet will consist of several things. Some of these things include lean meats and substituting shakes for certain meals. Shakes are good to eat during breakfast. Snacking is also good. Instead of eating high fat or high sugar foods, choose good proteins like almonds and even fruit. Sugar and carbs have to be eliminated as much as possible. Sugars and carbs are typically the culprits when it comes to weight gain. If you crave sugar and starch, try to find healthy alternatives.

Dieting is not everyone’s favorite thing to do, but it is good for you. Dieting before surgery and after surgery makes the surgical process easier, and it lowers your risk for complications. It is sometimes hard to start a diet, but if bariatric surgery is something that you want and feels that you need. You just have to do it. It takes discipline, but you have more than enough power to make your weight loss dreams come true. Just believe in yourself enough to do it.


There are hundreds of Surgeons to choose from; however, not all doctors are created equal. Advanced Bariatric surgery takes the skill and finesse of an experienced Surgeon. That’s why we’ve selected your city’s best Surgeons – to make the decision process easier for you and your family.

For your peace of mind, Top10MD Surgeons’ credentials are validated yearly to verify medical licenses have no serious patient care sanctions, current Board Certifications in their given medical specialty, current DEA & DPS licenses, and malpractice insurance. A Top10MD has at least 5+ years experience or has performed 300+ procedures in their given specialty and a current Patient Satisfaction Score of 8.5 or higher.

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