Skip to main content

Nutrition after Bariatric Surgery

Medically reviewed by Drugs.com. Last updated on Nov 3, 2024.

What do I need to know about nutrition after bariatric surgery?

Bariatric surgery includes laparoscopic adjustable gastric banding, roux-en-Y, and sleeve gastrectomy. Nutrition goals after bariatric surgery are to lose weight, absorb nutrients, get enough liquids, and prevent health problems. You will need to follow 4 stages of nutrition recommendations after bariatric surgery. Your dietitian will tell you when you can move from one stage to another and help you choose foods at each stage.

What do I need to know about health problems after bariatric surgery?

Health problems that can occur after surgery include vomiting and dumping syndrome. Dumping syndrome is a condition that occurs when food moves from your stomach into your small intestine too quickly. It can cause nausea, abdominal pain and diarrhea after you eat.

What is the first stage of nutrition recommendations?

On the first day or two after surgery , you will only be allowed to have clear liquids. These liquids will be low in sugar or sugar-free, caffeine free, and not carbonated. You may be given plain water, sugar-free flavored beverages, or decaffeinated coffee or tea. You may also be given clear broth, sugar-free gelatin, and sugar-free popsicles. Sip the liquids very slowly to help prevent vomiting. Do not use a straw. This helps prevent you from taking in extra air.

What is the second stage?

Seven days after surgery , you will continue to have clear liquids. You will also add full liquids that contain protein. Protein helps you heal after surgery. You will follow this stage for about 1 week.

Sources of Protein

What is the third stage?

What is the fourth stage?

About 7 weeks after surgery , you will be able to start eating regular solid foods. Follow these nutrition guidelines for the rest of your life.

What general nutrition guidelines should I follow after bariatric surgery?

When should I call my dietitian?

Care Agreement

You have the right to help plan your care. Discuss treatment options with your healthcare provider to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

© Copyright Merative 2024 Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.