Effects of Nutritional Counselling in Renal Patients

Mini-Review | DOI: https://doi.org/10.31579/2690-1919/591

Effects of Nutritional Counselling in Renal Patients

  • Anita L R Saldanha 1
  • Ana Paula Pantoja Margeotto 1
  • Ana Paula Pantoja Margeotto 2
  • Tania Leme da Rocha Martinez 1*

1Nephrology Department, BP - A Beneficência Portuguesa de São Paulo, São Paulo, Brazil

2Intensive Care Unit, BP - A Beneficência Portuguesa de São Paulo, São Paulo, Brazil

*Corresponding Author: Tania Leme da Rocha Martinez, Intensive Care Unit, BP - A Beneficência Portuguesa de São Paulo, São Paulo, Brazil.

Citation: Saldanha ALR, Margeotto APP, Gasparoto ALV, Martinez TLR, (2025), Effects of Nutritional Counselling in Renal Patients, J Clinical Research and Reports, 21(4); DOI:10.31579/2690-1919/591

Copyright: © 2025, Tania Leme da Rocha Martinez. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Received: 02 October 2025 | Accepted: 04 November 2025 | Published: 11 November 2025

Keywords: renal; diet; counselling; chronic kidney disease; hemodialysis

Abstract

The Intensive, individualized nutrition counseling by specialized renal dietitians is the most effective strategy for improving outcomes in kidney disease. Studies across chronic kidney disease stages and dialysis settings show significant gains in nutritional status, biochemical markers, knowledge, and quality of life. Compared to standard or group counseling, intensive approaches reduce potassium, phosphorus, and sodium intake and improve kidney function. Specialized dietitian guidance lowers malnutrition rates and enhances energy and protein intake, anthropometric measures, and functional capacity. Counseling also strengthens patient education, improving adherence and phosphate binder use. Effective programs target excessive sodium and potassium intake through repeated, personalized sessions and realistic meal plans. Despite strong evidence, access to renal dietitians remains limited globally, especially in low-income regions. Overall, nutrition counseling is a cornerstone of renal care, capable of slowing disease progression and improving patient outcomes when initiated early and sustained through continuous monitoring.

Introduction

Intensive, individualized nutrition counseling is the most effective approach for renal patients, significantly improving nutritional status and clinical outcomes.

The evidence spans multiple studies across different kidney disease stages. Key findings include:

  • Intensive counseling led to significant reductions in problematic nutrient intakes (potassium, phosphorus, sodium) [1].
  • Patients receiving specialized dietitian counseling showed improved nutritional status, with malnutrition rates dropping from 97.2% to 89.8% [2],
  • Counseling improved patients’ nutritional knowledge, dietary habits, and biochemical parameters across studies [3].

The strongest evidence comes from studies with 45-277 participants, demonstrating consistent improvements in nutritional markers, patient knowledge, and potentially slowing disease progression [4].

Comprehensive analysis of best nutrition counseling practices for renal patients

Overview and importance: nutrition counseling represents a critical intervention for patients with kidney disease, with evidence demonstrating significant improvements across multiple clinical outcomes. The research consistently shows that structured, individualized nutrition counseling can improve nutritional status, slow disease progression, and enhance quality of life for renal patients [4].

Intensive vs. standard counseling approaches: the most compelling evidence supports intensive, individualized nutrition counseling over standard group-based approaches. In a controlled study of 59 patients with chronic kidney disease stages 3-4, intensive counseling (three monthly individualized sessions) demonstrated superior outcomes compared to one-time group programs (1). The intensive group achieved significant reductions in problematic nutrient intakes: potassium decreased from 2,760.9 ± 677.4 to 1,500.7 ± 398.5 mg/day (P < .001), phosphorus from 1,010.5 ± 247.4 to 631.3 ± 178.1 mg/day (P < .001), and sodium from 4,009.8 ± 1,418.2 to 2,224.6 ± 759.8 mg/day (P < .001). Remarkably, the intensive group also showed improved kidney function, with estimated glomerular filtration rate (eGFR) increasing from 43.1 ± 11.8 to 48.9 ± 13.7 mL/min/1.73m² (P = .002).

Specialized dietitian vs. general healthcare professional counseling: a large-scale study involving 277 hemodialysis patients directly compared counseling by renal dietitians versus other healthcare professionals [2]. The results strongly favored specialized dietitian counseling. In the experimental group receiving dietitian counseling, malnutrition rates decreased from 97.2% to 89.8% over six months. The well-nourished patient category improved by 7.2%, the mild-to-moderate malnutrition group improved by 14.3%, and the severely malnourished group decreased by 21.6%. In contrast, the control group showed no improvement in well-nourished patients and actually demonstrated a shift toward more severe malnutrition.

Specific Clinical Outcomes and Biochemical Improvements

Multiple studies demonstrate consistent improvements in key biochemical markers following nutrition counseling. A study of 70 chronic kidney disease patients (stages 3-4) using a two-phase counseling approach showed significant decreases in serum creatinine, blood urea nitrogen, serum potassium, and serum phosphorus levels (3). Similarly, research with 100 end-stage renal disease patients found significant improvements in energy intake (p=0.010), protein intake (p=0.003), and fat intake (p=0.002), along with improvements in anthropometric measures including mid-upper arm circumference (p<0>

Impact on nutritional knowledge and patient education

Beyond clinical markers, nutrition counseling consistently improves patient understanding and dietary compliance. A study of 45 hemodialysis patients demonstrated that dietary counseling significantly improved patients’ knowledge about nutrients, dietary habits, and food preparation methods [6]. The phosphorus-to-protein intake ratio improved substantially, and patients showed better adherence to phosphate binder medications. This educational component appears crucial, as multiple studies identified that 97.5% of patients were initially mildly to moderately malnourished, with widespread nutritional knowledge deficits [7].

Functional and quality of life improvements

The benefits of nutrition counseling extend beyond laboratory values to functional outcomes. Research with 41 end-stage renal disease patients showed statistically significant improvements in Karnofsky performance scale scores and malnutrition inflammation scores following one-to-one nutrition counseling [7]. These improvements translated to better performance in activities of daily living and overall health status.

Optimal counseling protocols and implementation

The evidence suggests that effective nutrition counseling requires multiple components. A 60-patient study of chronic renal failure patients on hemodialysis demonstrated that combining proper dietary counseling with high biological value protein recommendations (1.2 gm/kg ideal body weight) produced superior nutritional outcomes compared to standard medical therapy and dialysis alone [8]. The study showed statistically significant improvements in biochemical parameters (p<0>

Addressing Common Nutritional Problems

Research consistently identifies specific nutritional challenges in renal patients. The most common nutritional diagnosis was excessive sodium intake (97.6% of patients), followed by potassium (78.6%), protein (52.4%), and phosphorus (31.0%) [1]. Effective counseling programs specifically target these areas, with successful interventions showing dramatic reductions in problematic nutrient intakes while maintaining adequate overall nutrition.

Global perspectives and access challenges

Despite the clear benefits, access to specialized renal nutrition counseling remains limited globally. Only 48% of countries report availability of dietitians with renal nutrition training, with particularly low availability in low-income (9%) and low-middle income (20%) countries [4]. This disparity highlights the need for expanded training programs and innovative delivery methods, including telehealth and mobile device-assisted nutrition care.

Long-term outcomes and disease progression

The evidence suggests that early and intensive nutrition counseling may slow disease progression and delay the need for more intensive interventions. Studies indicate that nutrition interventions can improve quality of life, slow chronic kidney disease progression, and mitigate complications in patients undergoing kidney replacement therapy [4]. The approach should be patient-centric with realistic meal plans initiated at early chronic kidney disease stages, with regular follow-ups and diet diaries to prevent malnutrition [9].

Conclusion and recommendations

The evidence overwhelmingly supports intensive, individualized nutrition counseling delivered by specialized renal dietitians as the optimal approach for renal patients. This intervention consistently improves nutritional status, biochemical markers, patient knowledge, functional outcomes, and potentially slows disease progression across all stages of kidney disease. The most effective programs combine multiple counseling sessions, individualized meal planning, patient education, and ongoing monitoring with regular follow-ups.

Acknowledgments

None.

Conflicts of interest

No conflict of interest.

References

Dear Editorial Team, Clinical Medical Reviews and Reports. My experience with the journal was highly positive. The peer-review process was rigorous, constructive, and completed in a timely manner. The reviewers provided valuable comments that helped improve the quality and clarity of our manuscript. The editorial office was professional, responsive, and supportive throughout all stages of the publication process. Communication was clear and efficient, and any questions were addressed promptly. Overall, I found the journal to maintain high scientific standards and an excellent publication workflow. I would be pleased to consider submitting future work to this journal. Best wishes from, Elena Popa.

img

Dr Elena Popa

It was my pleasure to submit my testimonial concerning the Reviewer Board of our Scientific Journal “Brain and Neurological Disorders”. The Reviewers focused on some modifications and their contribution was helpful. The ladies of our Editorial Office were also supported my efforts. It was my honor to have such a co-operation and I am looking forward for more collaboration.

img

Dr Nikolaos Andreas Chrysanthakopoulos

Dear Grace Pierce, Editorial Coordinator of Journal of Clinical Research and Reports, Thank you for the speedy and efficient peer review process. I appreciate the fact that your peer reviewers do not take months to respond like with some other journals. I would also like to thank the editorial office for responding quickly to my questions. It is an excellent journal. I plan to submit more manuscripts in the future. Best wishes from, Robert W. McGee

img

Robert W McGee

Dear Grace Pierce, Editorial Coordinator of Journal of Clinical Research and Reports, Working with you and your team on our recent publication in JCRR has been a truly wonderful and enjoyable experience. The responses were prompt, and the reviewers were patient, constructive, and highly professional. One reviewer in particular gave me the feeling that a professor was carefully reading and commenting on my coursework, which was deeply touching. The entire process was straightforward and hassle‑free, with no tedious online forms to complete. I highly recommend this journal. Best wishes from, DR Aibing Rao, Head of R&D

img

Aibing Rao

I Appreciate the Opportunity to Share my Experience with the Journal of Clinical Research and Reports. The peer review process was timely and constructive, and the feedback provided helped improve the quality of our manuscript. The editorial office was professional, responsive, and supportive throughout the process, ensuring smooth communication and efficient handling of the submission. Overall, it was a positive experience collaborating with your team.

img

Kashani Mehdi

Dear Mercy Grace, Editorial Coordinator of Obstetrics Gynecology and Reproductive Sciences, We would like to express our gratitude for your help at all stages of publishing and editing the article. The editors of the magazine answer all the necessary questions and help at every stage. We will definitely continue to cooperate and publish other works in the Obstetrics Gynecology and Reproductive Sciences! Best wishes from, Alla Konstantinovna Politova,

img

Alla Konstantinovna Politova