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What Does a Renal Nutritionist Do?

Learn all about the role of a renal nutritionist and how they can help support your kidney health with a customized renal diet.

Kidney health is essential for overall well-being. Good kidney function is necessary to keep the body healthy by removing bodily waste products and regulating blood pressure. However, kidney disease is more common than we realize, affecting about 1 in 7 adults in the U.S. Interestingly, about 90% of affected individuals don’t know that they have a problem.

If you are concerned about the health of your kidneys, suffer from chronic kidney disease, or have received a kidney-related diagnosis, you may want to consider adding a renal nutritionist to your healthcare team. 

Renal nutritionists are dietetics professionals who help clients with kidney-related health concerns. A renal nutritionist may assist people with chronic kidney disease who need dialysis, who have experienced kidney failure, or who would benefit from adopting a renal diet.

In this article, we’ll explore the role of renal nutritionists and discuss the services they provide.

What Is a Renal Nutritionist?

A renal nutritionist is an expert specially trained to help people with kidney disease make dietary changes that support their health. Kidney disease can cause several problems, including anemia, fluid retention, heart disease, and high blood pressure. A renal nutritionist can help individuals with kidney disease select foods low in sodium and potassium and create a diet plan that meets their unique needs.

In addition to helping people with kidney disease, the best renal nutritionists also work with dialysis patients and individuals with other chronic illnesses, such as diabetes. Individuals with chronic illness can learn to make dietary changes to improve their overall health with the help of a credentialed nutritionist. 

Am I a Good Candidate to Work with a Renal Nutritionist?

You may wonder whether working with a renal nutritionist is right for you. The truth is that almost anyone with kidney disease can benefit from professional nutrition guidance regarding a renal diet (also known as a kidney diet).

Renal nutritionists are trained to understand the unique needs of people with chronic kidney disease and those who want to lower their risk of kidney failure. They can provide practical advice about which foods to eat and which to avoid. Renal nutritionists can also give helpful tips for managing weight and overall health.

In addition, renal nutritionists can offer support and encouragement related to renal care and general wellness. If you are ready to make positive changes in your diet and lifestyle, a renal nutritionist could help you achieve your goals.

Before you start searching for a "nutritionist near me" or a "renal nutritionist near me," let's clarify some of the scenarios where working with a renal nutritionist is helpful:

If you have been diagnosed with kidney disease 

A renal dietitian is a vital medical team member for patients with kidney disease. Renal dietitians provide education and support to help patients make essential changes to their diet to manage the symptoms of kidney disease.

Patients with kidney disease need to restrict their intake of certain nutrients, including protein, potassium, phosphorus, and sodium, as part of a kidney-friendly diet. They may also need to limit their fluid intake, as surprising as that may seem.

A renal dietitian works with the patient to create a customized plan that meets their individual needs and helps them make these critical dietary changes. A renal expert will consider your current eating habits as they develop a nutrition plan that helps you reach your health goals.

In addition to providing education and support, a renal dietitian can monitor the patient's progress and adjust their diet as needed. A renal dietitian is essential to the care plan for patients with kidney disease.

If you are on dialysis 

Renal dietitians frequently work with people who are on dialysis. If you are on dialysis, your kidneys can no longer filter waste and extra fluid from your blood. Without proper kidney function, you need to avoid foods that don't meet your dietary needs, including foods that are high in sodium, potassium, phosphorus, and fat.

A renal dietitian can help you create a meal plan that meets your nutritional requirements and limits your intake of these substances. They can also provide education and support to help you make changes to your diet in a way that's easy to incorporate into your daily life.

For example, you may need to learn to prepare new recipes with minimal sodium or potassium content. Making these changes can be difficult initially, but a renal dietitian can help make the transition easier.

If you are waiting for a kidney transplant 

There are several reasons why renal nutritionists are vital for people waiting for a kidney transplant:

  • They can advise patients about including the proper nutrients in their pre-transplant diet.
  • A renal nutritionist can monitor the patient's weight and ensure that they are not losing or gaining too much, potentially affecting their surgery eligibility.
  • Renal nutritionists can help educate patients (as well as family members and other caregivers) on how to best care for their kidneys after the transplant.
  • Renal nutritionists can provide guidance and encouragement to patients and their families during this stressful time.

How a Renal Dietitian Can Help You Create Healthy Lifestyle Choices

If you have any form of kidney disease plus other health concerns, a renal dietitian can personalize a lifestyle plan to help you with the following:

Weight Loss 

People often focus on cutting calories and getting more exercise when trying to lose weight. However, the quality of their meals is equally important. Renal dietitians are nutrition experts and can suggest ways to increase protein intake while staying within calorie limits. They can also provide tips on portion control and making healthy choices when dining out.

Acid Reflux 

Renal dietitians understand how different foods affect acid reflux. If you have acid reflux, they can work with you to create meals that are less likely to trigger your symptoms. They may also recommend avoiding certain foods and drinks, including alcohol, caffeine, chocolate, and spicy or fried foods.

In addition, they can help you manage your weight since being overweight or obese is a risk factor for acid reflux. Following a renal dietitian's recommendations can help alleviate your symptoms.


Renal dietitians help pregnant women by providing education and guidance on how to eat a kidney-friendly and kidney-safe diet. They work with expectant mothers to manage preexisting kidney conditions that may complicate their pregnancies.

By working closely with a pediatric or renal nutrition specialist, pregnant women can help ensure healthy pregnancies and safe deliveries for themselves and their babies.


Mothers with kidney disease may have difficulty breastfeeding because of their renal condition or medications. Renal dietitians can provide breastfeeding mothers with information and resources on how to pump and store breastmilk and maintain a milk supply. They can also refer them to support groups and recommend infant formulas for mothers who cannot breastfeed.


After you have a baby, you need to eat healthily to recover and heal properly. Unfortunately, this isn't easy while caring for a newborn. A renal dietitian can help you understand what foods are best for healing and recovering after childbirth. They can also give you weight management strategies, boost energy levels, and reduce stress and anxiety.

You should always keep your healthcare team or medical provider in the loop about your rental nutritionist's recommendations.

Gut Health 

Renal dietitians play an essential role in promoting gut health. The gut is home to a complex ecosystem of bacteria that help with digestion and nutrient absorption. Disruptions to the gut microbiome can lead to digestive issues, nutrient deficiencies, and immune dysfunction.

By working with renal patients to ensure they get the proper nutrients, renal dietitians help keep the gut healthy and functioning correctly.

Overall Wellness 

Renal dietitians are specialized nutrition professionals who educate and counsel about healthy eating habits and lifestyle choices. By working with a renal nutritionist, patients can be sure they follow a diet designed to promote overall health and well-being.

Is a Renal Registered Dietitian the same as a Renal Nutritionist? 

A renal registered dietitian (RD) is a nutrition specialist who cares for patients with kidney disease. Renal dietitians work closely with patients to ensure that they follow a healthy diet to help maintain their kidney function. 

A renal nutritionist is similar to a renal registered dietitian but may not have the same level of training or certification. Registered dietitians must hold at least a bachelor's degree in nutrition, complete an extensive clinical internship, and pass the Commission on Dietetic Registration (CDR) exam.

However, both types of professionals can help provide patients with kidney-friendly recipes to manage their condition and improve their overall health. Whatever renal nutritionist you choose to work with, taking the time to verify their credentials is essential to ensure you’re getting the best advice possible.

Setting Realistic Success Goals for Working with a Renal Nutritionist

Regarding renal nutrition, success is not a one-size-fits-all proposition, and renal nutritionists are not the food police. What works for one patient may not work for another, and what works at one stage may not be effective later. That's why it's essential to set realistic goals with your renal nutritionist.

If you're willing to work hard and make lifestyle changes, you can realistically expect to improve your quality of life. However, remember that renal nutrition is a lifelong journey, not a quick fix. With the right attitude and approach, it can be a sustainable solution for you.

Get Started with a Renal Nutritionist Today

If you're interested in starting a renal nutrition program, the first step is to find a qualified renal nutritionist. Renal nutritionists have extensive training in providing nutritional support for people with kidney disease. They can help you develop a personalized nutrition plan that meets your individual needs.

Here at Top Nutrition Coaching, we follow a rigorous vetting process focused on finding the best dietitians with world-class counseling skills and deep expertise in the area of nutrition you need.

Get started today. Take our matching quiz, and let us connect you to a renal nutritionist to join you on your health journey.

Find your personal nutrition coach today.

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About the author

Nicolette Star Maggiolo, RD, LDN
I'm a Registered Dietitian-Nutritionist with education from Boston University and clinical training from both Brigham & Women's Hospital and Massachusetts General Hospital in Boston. I specialize in helping the military and non-military individuals embrace nutrition as a partner in both their mental and physical health.

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