Low residue diet which is low fiber, no more than 2 grams per serving. No raw veggies, fruits with skins, seeds, no nuts etc. Mayo should have access to a complete low residue diet online. Also I lived on Boost Breeze while I had blockages. I have undergone 5 intestinal surgeries in the past 2 years. I ordered it on Amazon, since you can’t find it in stores. It is clear, and has 9 grams of protein in each box. Very tasty as well.