Diet & Life After Bariatric Surgery

You did it. Your weight loss surgery is finished. But your new journey has just begun. Make sure you follow these post-operative diet restrictions and consult your bariatric team nutritionist with any questions about food, intake and overall nutritional value. To start, it’s all about liquids and proteins.

Phase 1: Liquid Stage

Day 0 – 14 (Post-Surgery)


Stay hydrated and don’t worry about calories. Drink as much as your body tolerates. This amount will increase every day.


  • Drink clear liquids — For the first week drink clear liquids then gradually add milk- based products to your diet.
  • Drink liquids slowly — Take a few sips, then wait 1-2 minutes for your stomach to feel empty.
  • Drink protein shakes — At least one protein shake each day.
  • Eat low fat options — Soup, skim milk, diluted cream of wheat, cream of rice cereal, sugar-free pudding, sugar-free jello and popsicles.
  • Drink calorie-free beverages — Between meals drink water, Crystal-Lite, Diet Snapple or Propel (no carbonated drinks).
  • Drink 64 oz. of liquid each day — You’ll get there after a few weeks.
  • Take your vitamins — Eat chewable vitamin mineral supplements one week after surgery.

Phase 2: Pureed Stage

Week 3–4 (Post-Surgery)


Stay hydrated and improve your protein intake.


  • Drink 64 oz. of liquid each day — You’ve got this!
  • Take your vitamins — Eat chewable vitamin mineral supplements one week after surgery.
  • Drink protein shakes — Drink 3 protein shake each day.
  • Eat high protein items first at meals — Include cottage cheese, low-fat soups, and light yogurt in your diet. Then add pureed chicken, turkey, fish and eggs (baby food consistency).
  • Eat vegetables — Puree or ground up your vegetables.
  • Include starches —Choose cooked cereals, pasta, sweet potatoes or mashed potatoes.
  • Snack on fruit —Include mashed or pureed canned fruits with light syrup. No fresh fruits allowed.
  • Calculate your protein — Get a minimum of 50-70 grams of protein per day.

Phase 3: Back to Normal

Moving Forward Post-Surgery


A return to normal consistency foods, eat when you’re hungry and stop when you’re full.

  • Eat slowly — You won’t be able to eat red meat or bread immediately, so ease into them. Trial and error is key to getting to an unrestricted diet.
  • Eat when you’re hungry — Be sure to eat 2-3 small, high-in-protein meals each day.
  • Drink calorie-free beverages — Drink at least 2 quarts in between meals each day, to lower your risk for developing kidney stones. Stay away from carbonated beverages.
  • Avoid simple sugars — No cookies, cakes, pies or candy. Only eat bread in small quantities.
  • Eat slowly — Chew well and drink plenty of liquids.
Vitamins and Minerals
  • Vitamins and mineral supplements are mandatory now, for life.
  • Calcium — 500mg of Tums three times a day.
  • Multivitamin— Two multivitamins a day, including chewable or liquid adult multivitamins.
  • Iron— Ferrous Sulfate and Ferrous Gluconate required in pre-menopausal women once a day.

Exercise after Bariatric Surgery

Our exercise specialists offer educational tools that will help you lead an active lifestyle and exercise after bariatric surgery.

The Importance of Mental Health After Significant Weight Loss

Mental health can fluctuate after a large life event like bariatri surgery. Without exception, all patients of Einstein Bariatrics must use our recommended team of registered dietitians and psychologists. With the help of our best in class psychologists, patients can see experience improved mental health after bariatric surgery. The cost of these the consultation by the psychologist may depend on your insurance company.


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