Weight Loss Surgery Diet

Stage 1 - Clear Liquid Diet

Posted: 10/4/23Updated: 2/8/24By Jason Richardson, MD

This phase lasts for the first 2 days following surgery. During this stage, patients are advised to consume only clear, water-based liquids that can be effortlessly poured through a mesh strainer. Examples include water, broths, and caffeine-free teas. These drinks are essential as they provide hydration while avoiding stress to the digestive system during the early recovery period. After surgery, patients should only consider moving to a subsequent diet stage if they are tolerating their current diet stage without any problems.

Options to Consider:

Water - This is the most important liquid you need to drink every day

Clear broths or bouillon (like meat, fish, or vegetable broth)

Clear protein drinks

Clear frozen desserts (like ice pops, sherbet, or Italian ice)

Coconut water

Caffeine-free Herbal teas (like chamomile or ginger tea)

Sports drinks (like sugar-free Gatorade® or Powerade®)

Sugar-free drink mixes (like Crystal Light®)

Fruit juices without pulp or added sugars (like apple or grape juice in moderation)

Notable Things to Avoid:

Caffeine containing liquids (like coffee or green tea) - May contribute to reflux and heartburn

Gelatin - Because it is not a liquid

Especially spicy foods (hot peppers, etc.)

(For surgery that involves stapling) Papayas or pineapples - Might injure some healing tissues

You should make sure that any diet or recipe is approved for you by your own qualified healthcare provider. Do not consume more than ½ cup of food during any single meal, and stop eating and drinking before that amount if you start feeling full or uncomfortable.