Types of commonly prescribed oral diets
- The clear liquid diet supplies fluid and calories in a form that requires minimal digestion, stimulation, and elimination by the GI tract.
- It provides approximately 600 calories and 150 g carbohydrate but inadequate protein, vitamins, and minerals.
- Clear liquids are hyperosmolar; diluting the beverages and eating slower may minimize GI symptoms. If clear liquids are needed for longer than 3 days, a dietitian can assist with supplementation.
- The full liquid diet is used often in progressing from clear liquids to solid foods.
- It also may be used in patients with chewing problems, gastric stasis, or partial ileus. Typically, the diet provides more than 2000 calories and 70 g protein. It may be adequate in all nutrients (except fiber), especially if a high-protein supplement is added.
- Patients with lactose intolerance need special substitutions.
- Progression to solid foods should be accomplished with modifications or supplementation, as needed.
