Here’s a quick summary of what to expect for your short- and long-term post-gastric sleeve diet:
Immediately following surgery:
Strictly regimented by your dietitian or nutritionist
Liquids only for the first few days, starting with only about an ounce
Introduce powdered Protein for a week or two
Slowly transition to thicker foods through week 6 or so (completely pureed – NO solid foods)
Solid foods usually begin between 6 and 8 weeks out, after which your “normal” long-term diet will begin
Long-term bariatric diet after gastric sleeve surgery:
Consists of three 4 ounce meals per day
Learn and avoid foods that will cause problems, including difficulty swallowing, poop problems and/or vomiting
Must “eat healthy” – only natural foods cooked with healthy ingredients
Daily protein must come first – you’ll need a lot of it
Avoid simple carbs and eat “good carbs” in small portions to keep your blood sugar steady
Drink a lot of Water (about ½ gallon), but don’t drink during or after meals
Don't snack unless it's a scheduled part of your diet
Staying on track can be difficult, so it’s best to find and religiously use a good food journal to plan and track your diet. FitDay and MyFoodDiary are two good options.
Good luck!
Jeff
Source: Bariatric Diet, Bariatric Eating, the Top 5 Long-Term Success Factors and 12 Tips to Keep You on Track