Patients not ready for a regular diet due to elective or emergent procedures or who experience irregularity in gastrointestinal function, dysphagia, a transition from prolonged fasted periods, etc., are typically placed on a restrictive diet. Dietary restrictions can be as restrictive as no food or liquids allowed by mouth, which may increase in a stepwise fashion until reaching regular nutrition. One step in that progression is a full liquid diet. A patient prescribed a full liquid diet follows a specific diet type requiring all liquids and semi-liquids but no forms of solid intake. Unlike a clear liquid diet, which includes only liquids and semi-liquids that are non-opaque, a full liquid diet is more inclusive, as it allows all types of liquids.
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