Kidney Wellness
Chronic kidney disease (CKD) affects millions of adults, but with the right nutrition plan and realistic lifestyle habits, you can support overall renal wellness at every stage.
At PureVital Nutrition, our goal is to help you understand what’s happening inside your body and empower you with clear, practical steps that fit your life. Small, consistent changes can make a great difference in the trajectory of kidney wellness.

The Kidneys’ Role in the Body
The kidneys act as the body’s filters. They remove waste, balance electrolytes, regulate blood pressure, and aid in making red blood cells. When the kidneys start to lose function, effects include waste and fluid build up, which may in turn affect energy, appetite, and cardiovascular health.
CKD usually develops gradually and often shows few symptoms early on. That’s why early detection, regular lab work, and nutrition are key to keeping your kidneys working effectively for as long as possible.
Chronic kidney disease is classified into five stages. Each stage is based on how efficiently the kidneys are able to filter waste, measured by the glomerular filtration rate (GFR). In the early stages, kidney function remains strong. In the later stages, as filtration decreases, the focus shifts toward reducing progression and managing lab values through individualized nutrition care. Reference the below chart from the National Kidney Foundation for a breakdown of each stage. During nutrition sessions, I review your lab results in detail to personalize your plan and ensure it fits your stage and goals.

Source: National Kidney Foundation. Stages of Chronic Kidney Disease (CKD): Estimated Glomerular Filtration Rate (eGFR). Available at: https://www.kidney.org/kidney-failure-risk-factor-estimated-glomerular-filtration-rate-egfr. Accessed November 12, 2025.

Medical Nutrition Therapy for CKD
Nutrition is one of the most effective tools for managing kidney health. The renal diet itself carries specific guidelines for every stage of CKD.

Stage 1–2: Protect and Prevent Progression
At this stage, your kidneys are still functioning well. Our focus at this stage is to protect them through a heart-healthy diet as well as managing other co-occurring conditions.

Nutrition focus:
● Protein: Keep intake moderate (~0.8 g/kg/day). Include more plant-based proteins in order to reduce inflammation and acid load.
● Sodium: Limit to <2,300 mg/day to control blood pressure. Choose fresh or frozen foods without a high amount of added salt.
● Fruits & vegetables: Increase intake to lower acid buildup.
● Hydration: Stay well hydrated unless told otherwise by your provider.

Lifestyle habits:
● Maintain a healthy weight.
● Aim for at least 150 minutes of moderate activity each week.
● Keep blood pressure and blood sugar within target ranges.

Stage 3: Reduce Strain
Stage 3 is when kidney function begins to noticeably decline. Labs may start reflecting changes in potassium, phosphorus, or waste products.

Nutrition focus:
● Protein: Modest restriction (~0.55–0.6 g/kg/day) can slow CKD progression, helping to delay the need for dialysis.
● Potassium: Depending on lab results, some people need to limit high-potassium foods. Boiling vegetables may help lower potassium content.
● Phosphorus: Practice reading nutrition labels. Choose whole foods over those with phos-additives (found in many foods such as deli meat, soda, and cheese).
● Sodium: Keep intake below 2.3 g/day for BP and fluid control.
● Calories: Maintain adequate energy (~25–35 kcal/kg/day) to prevent muscle loss.

Lifestyle habits:
● Continue exercise and practice good sleep hygiene.
● Track blood pressure and get lab work done regularly.

Stage 4–5 (Pre-Dialysis)
In advanced stages, kidney function is severely reduced. At this point, the diet should be very reflective of current labs. Work with a registered dietitian to ensure individualized care.

Nutrition focus:
● Protein: Continue a lower-protein diet unless otherwise advised by your dietitian or physician.
● Sodium, potassium, and phosphorus: Adjust based on lab results. Many patients benefit from a plant-based focus and reduced intake of processed foods.
● Calcium: Maintain ~800–1,000 mg/day from diet and supplements combined.
● Fluids: If your doctor advises a restriction, limit total daily intake to help prevent swelling and fluid buildup.

Dialysis & Beyond
Once dialysis begins, nutrient needs change again. Dialysis removes waste but can also remove key nutrients like protein and water-soluble vitamins.

Nutrition focus:
● Protein: Increase intake to ~1.0–1.2 g/kg/day to prevent malnutrition.
● Phosphorus & potassium: Continue to monitor closely, as levels can fluctuate.
● Fluids: Follow individualized limits.

After a kidney transplant, the focus shifts to healing, maintaining a healthy weight, and preventing infection. Adequate protein and food safety become a top priority.

Living Well with Kidney Disease
Living with kidney disease doesn’t mean giving up your favorite foods—it’s about finding balance and learning what works for your body. With the right plan, most people can enjoy a wide range of foods while supporting long-term kidney health.
At PureVital Nutrition, I work one-on-one with clients to build individualized nutrition plans that fit their health goals, lab results, and lifestyle. Together, we will practice realistic, evidence-based strategies to simplify kidney care.
If you’re ready to feel confident about your kidney health, schedule a free 30-minute consultation through our “Get Appointment” tab. We’ll discuss your goals and build a plan that supports your kidneys and overall well-being.

References

1. Academy of Nutrition and Dietetics. Chronic Kidney Disease (CKD): Nutrition Intervention. Nutrition Care Manual website. Published 2020. Accessed October 19, 2025. https://www.nutritioncaremanual.org/topic.cfm?ncm_category_id=1&lv1=5537&lv2=274796&lv3=274815&ncm_toc_id=274815

2. National Kidney Foundation. Nutrition and Kidney Disease, Stages 1–5 (Not on Dialysis). National Kidney Foundation website. Accessed October 19, 2025. https://www.kidney.org/kidney-topics/nutrition-and-kidney-disease-stages-1-5-not-dialysis

3. NephCure Kidney International. Renal Diet. NephCure website. Accessed October 19, 2025. https://nephcure.org/managing-rkd/diet-and-nutrition/renal-diet/

4. National Kidney Foundation. Stages of Chronic Kidney Disease (CKD): Estimated Glomerular Filtration Rate (eGFR). National Kidney Foundation website. https://www.kidney.org/kidney-failure-risk-factor-estimated-glomerular-filtration-rate-egfr. Accessed November 12, 2025.

5. Academy of Nutrition and Dietetics Evidence Analysis Library (EAL). Chronic Kidney Disease (CKD) Evidence-Based Nutrition Practice Guideline. 2020. Accessed October 19, 2025. https://www.andeal.org/topic.cfm?menu=5303