Which statement best describes the effect of concentrated enteral formulas on nausea due to delayed gastric emptying?

Which statement best describes the effect of concentrated enteral formulas on nausea due to delayed gastric emptying?

• A. They are generally helpful.
• B. They reduce osmotic load.
• C. They contain more fat and can increase osmotic load, worsening intolerance.
• D. They have no impact on gastric emptying.

Answer: (C)

When gastric emptying is delayed, what you feed matters as much as how much you feed. Concentrated enteral formulas deliver more calories per milliliter, which often means more fat and a higher osmolar load. Fat slows gastric emptying through hormonal signals and mechanical effects, and a higher osmolarity in the stomach increases luminal distension and irritation, both of which can worsen nausea and overall intolerance. So, these concentrated formulas are more likely to worsen, not improve, symptoms in delayed gastric emptying. The idea that they reduce osmotic load or have no impact on gastric emptying doesn’t fit the physiology, since their higher fat content and osmolarity tend to slow emptying and aggravate intolerance.

When gastric emptying is delayed, what you feed matters as much as how much you feed. Concentrated enteral formulas deliver more calories per milliliter, which often means more fat and a higher osmolar load. Fat slows gastric emptying through hormonal signals and mechanical effects, and a higher osmolarity in the stomach increases luminal distension and irritation, both of which can worsen nausea and overall intolerance. So, these concentrated formulas are more likely to worsen, not improve, symptoms in delayed gastric emptying. The idea that they reduce osmotic load or have no impact on gastric emptying doesn’t fit the physiology, since their higher fat content and osmolarity tend to slow emptying and aggravate intolerance.