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Nutritional status, delaying progression and risks associated with protein restriction
1Dietetic Department, Freeman Hospital, Newcastle upon Tyne, England. dietetics@nuth.northy.nhs.uk
EDTNA/ERCA Journal (English Ed.)
|March 1, 2002
Summary
Low protein diets (LPD) for chronic renal failure (CRF) are debated. While intended to slow disease progression, they risk malnutrition, which increases mortality. Optimizing nutritional status is key, with dialysis being the best treatment for uremic patients.
Area of Science:
- Nephrology
- Nutritional Science
- Internal Medicine
Background:
- Low protein diets (LPD), defined as <= 0.6 g protein/kg body weight daily, have been a traditional nutritional management strategy for chronic renal failure (CRF).
- Historically, LPD were recommended when dialysis access was limited; more recently, they have been proposed to delay CRF progression.
- The efficacy and safety of protein restriction in CRF remain controversial, with significant concerns about inducing malnutrition.
Purpose of the Study:
- To evaluate the role and potential risks of low protein diets in the nutritional management of chronic renal failure.
- To discuss alternative nutritional strategies for CRF patients, emphasizing the prevention of malnutrition.
- To highlight the importance of optimizing nutritional status in patients with chronic renal failure.
Main Methods:
- Review of existing research on low protein diets in chronic renal failure.
- Analysis of the risks associated with protein restriction, particularly malnutrition.
- Comparison of LPD with alternative nutritional management approaches.
Main Results:
- The value of protein restriction in delaying CRF progression is still debated.
- A significant concern with LPD is the potential to induce malnutrition, which is linked to increased mortality upon dialysis initiation.
- Current UK practices show LPD are used infrequently, suggesting a shift towards alternative strategies.
Conclusions:
- The primary objective of nutritional therapy in CRF should be to optimize the patient's nutritional status.
- Preventing malnutrition is of paramount importance in the management of chronic renal failure.
- For patients with uremia, dialysis represents the most effective treatment option.
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