Bariatric Liquids, Surgery Day – 2 Weeks Post-Op

In the first two weeks after your bariatric surgery, you will begin your post-op diet progression by consuming high-protein liquids. You will want to prioritize liquids that include protein to help you meet both your hydration and nutrition goals.

Some patients find that balancing sweet and savory flavors is helpful. You should rely primarily on low sugar protein shake options and low sugar smooth yogurt.

You will want to sip liquids in small amounts throughout the day. It may be helpful to carry a bottle with you or set a timed to sip fluid every 5 to 10 minutes. It is important to take in only small amounts at a time and avoid gulping or taking in more than an ounce or two at a time.

Print Your Post-Op Diet Guide

How to Choose a Protein Supplement

To choose the best protein supplement options, you want to evaluate an 8o ounce serving or scoop for powders. Protein supplements are available from whey protein isolate, egg white, soy & milk. Some patients find they do not tolerate lactose well and will want to avoid milk-based protein shakes. An appropriate supplement will have:

• 15 grams of protein or more
• Less than 10 grams of total carbohydrate for gastric bypass
• Under 5 grams of fat

Some bariatric appropriate protein supplement options include: Pro Performance 100% Whey or Protein 95 (soy), Met Rx Protein Plus, Unjury whey powder, Optimum (egg), Isopure Clear Liquid Supplement, Cytosport Clear Liquid Supplement, New Whey Protein

Options for the Liquid Diet

Protein Fluids: Pro Performance 100% Whey or Protein 95 (soy), Met Rx Protein Plus, Unjury whey powder, Optimum (egg), Isopure Clear Liquid Supplement, Cytosport Clear Liquid Supplement, New Whey Protein

Hydrating Fluids: Flavored water, Propel, Cystal Light, Diet Snapple, Chicken/Beef/Vegetable Broth

Tips: Adding texture can help keep make liquids less boring. Freezing allows you to add the satisfaction of a solid. You can enjoy ice, sugar-free Jell-O, or sugar-free popsicles.

If you prefer a less sweet or more savory liquid, try mixing Isopure or Unjury powder into broth.

Things to Avoid During the Liquid Phase

During the liquids phase it is important for patients to avoid carbonated drinks, caffeine, and alcohol. You should also limit sugar to less than 10 grams of sugar per serving. Drinking from a straw can lead to more air intake with drinking and should be avoided.