Bariatric Digestive System | Important info about your bariatric diet

By Kimber-Lynn Anderson

The Bariatric Digestive System

Bariatric procedures can naturally impact the digestive system. Often this surgery will remove not only a portion of the stomach but also parts of the small intestine. Because of this, bariatric surgery will affect both appetite and nutrient absorption. Nutrition should be one of your top priorities after a bariatric procedure to ensure you are absorbing the nutrients you need to recover and obtain optimum health. The most effective way to do this is through taking a bariatric-friendly multivitamin. This multivitamin will compliment a healthy diet. Below you’ll find a list of best foods to nourish your bariatric digestive system.

Lean Proteins

Protein intake is key while the body experiences rapid weight loss. If protein ingestion is low during weight loss, the body will take from muscle to obtain its protein requirements, leaving it feeling weak as a result. Protein intake per individual can vary, especially depending on the type of bariatric procedure. The average patient aims for 60-80 grams of protein per day, which may be difficult on a restricted calorie diet.Therefore, consuming high protein and low-calorie foods are essential. Here are 5 protein-rich foods to incorporate into your bariatric diet to help with your bariatric digestive system:

  1. Alaskan or Atlantic Salmon (low mercury level)– 7 g of protein per oz3
  2. Scallops (low mercury level)– 6 g of protein per oz3
  3. Turkey – 8 g of protein per oz
  4. Tofu – 10 g of protein per ½ cup
  5. Eggs – 6 g of protein in one egg
bariatric digestive system, nutrient dense foods, protein
Protein, Nutrient dense foods

Low-Carb Vegetables

Many bariatric patients limit the amount of carbohydrates in their diet post-surgery. An effective way of doing this is through cutting out high-carb vegetables like corn, peas, and potatoes. Low-carb vegetables can be packed with nourishing vitamins and minerals. Examples of low-carb vegetables include spinach, kale, zucchini, green beans, eggplant, radishes, and tomatoes.If you have difficulty digesting raw, you can lightly steam or roast them. These are great Nutrient dense foods to have in your bariatric diet


Technically “superfoods” isn’t an official nutrition term, however it refers to nutrient-dense plant foods. Because of the constrained caloric intake on a post-bariatric surgery diet, it is crucial that patients carefully choose what foods to consume. Selecting nutrient dense foods are an efficient way to gain as many nutrients as possible from a food item. Here are some of the top superberries to add to your bariatric diet:

  1. Elderberries
  2. Golden Berries
  3. Blueberries
  4. Raspberries
  5. Acai Berries
blueberries, nutrient dense foods
Blueberries, a nutrient dense food for bariatric dieting

Speaking of fruit…

One exception to look out for with the “superfood” rule is alcohol, such as wine. Alcohol should ideally be avoided after bariatric surgery to avoid intoxication, due to the increased absorption into the gut.Not only is the risk for intoxication amplified, but alcohol has the highest number of calories per gram than any other food group, making weight loss more difficult if consumed often.

Just because bariatric diets are specialized doesn’t mean you have to opt out on new foods and meals that your friends are sharing. Your body has unique needs, so be sure to always put your health first by focusing on nutrient-dense vegetables, fruits, and lean proteins. Here’s to a healthier you!

Persona offers doctor-approved, personalized Bariatric supplements based on your type of surgery and lifestyle delivered to your door. Our recommendations meet the guidelines of the American Society of Metabolic and Bariatric Surgery (ASMBS) and we cross-check your medications against a database of over 2,500 medications to ensure there are no drug-nutrient interactions. To start  your program today, visit our Bariatric page here :

If you are looking for the highest quality Vitamin and Mineral Supplements personalized for you, please go to and take our on-line questionnaire providing individualized vitamin and mineral recommendations. Persona is the only Science Based supplement provider on the web today! Take advantage of our knowledge and use it to your health’s benefit!

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  1. Brown R. Fruits & Vegetables after Bariatric Surgery. Obesity Action Coalition. Accessed October 31, 2018.
  2. Life After Bariatric Surgery. American Society for Metabolic and Bariatric Surgery. Accessed October 31, 2018.
  3. Perry C. The Best High-Protein Seafood Options. Muscle & Fitness. Accessed October 31, 2018.
  4. Eight foods to avoid after bariatric surgery. Phoenix Health. Accessed October 31, 2018.

This information is not intended as a substitute for the advice provided by your physician or other healthcare professional or any information contained on or in any product label or packaging. Do not use the information from this article for diagnosing or treating a health problem or disease, or prescribing medication or other treatment. Always speak with your physician or other healthcare professional before taking any medication or nutritional, herbal or homeopathic supplement, or using any treatment for a health problem. If you have or suspect that you have a medical problem, contact your health care provider promptly. Do not disregard professional medical advice or delay in seeking professional advice because of something you have read in this article.

Click here to learn more about Persona Nutrition

At WLS Afterlife, we always try to get you the best information about your bariatric diet and which nutrient dense foods will be the best for your life after weight loss surgery. We also recommend that you follow your bariatric surgeon’s plan for your diet after weight loss surgery. Please check with your bariatric team before you chance bariatric supplements. Depending on your bariatric surgery (gastric sleeve, gastric bypass, gastric band, lap band or other weight loss surgery) your body will have different needs for your bariatric digestive system. Please consult with your doctor.

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