what liquid diet
Full Liquid Diet. A full liquid diet consists of liquids allowed on the clear liquid diet with the addition of milk and small amounts of fiber. The diet may be used for short term such as a transition step between the clear liquid and soft diet following gastrointestinal surgery or procedures.
A clear liquid diet is a type of mechanically altered diet that includes only liquids without any pulp, bits of food, or other residue. They may have a tint (like orange juice or cranberry juice), and they may be sweetened or a little salty, but you shouldn't see anything floating around in the liquid.