“What foods can you not eat after gastric sleeve?”

After a sleeve, your stomach is greatly restricted in volume. It is not, however, a computer. That means, that certain foods, like ice cream, milk-shakes, and other soft sweets can easily pass through the narrow sleeve, but contain a tremendous amount of calories. This leads to failure to lose weight, or weight gain. After a sleeve gastrectomy, you should still make good choices about what you eat, because your stomach won't reject the unhealthy foods. You should avoid alcohol, smoking, NSAIDS, and oral steroids.

Stick to a green Mediterranean diet and the Surgeon instructions.

The recommended diet after a sleeve is low-fat, low-cholesterol, low carbohydrate, high protein, high fiber. You should avoid things like fast foods after surgery. Foods that are high in sugar or fat may cause dumping syndrome (nausea, bloating, and diarrhea).

This is best answered by your bariatric surgeon, but you need to eat softer foods and eat a lot less, not necessarily avoid any specific food.