Being diagnosed with stage 3 chronic kidney disease (CKD) can make everyday food choices feel complicated. Many people immediately wonder which foods they should avoid, how much protein they can eat, and whether they need to restrict potassium or phosphorus.

The good news is that a kidney-friendly diet does not have to be bland or extremely restrictive.

Stage 3 CKD generally means moderate reduction in kidney function. It includes stage 3a and stage 3b, depending on estimated glomerular filtration rate (eGFR).

At this stage, nutrition can become an important part of managing CKD and supporting overall health. However, there is no single diet that works for everyone.

A good diet plan for stage 3 chronic kidney disease should consider kidney function, blood pressure, diabetes status, potassium levels, phosphorus levels, medications, body size, activity level, and other medical conditions.

NIDDK emphasizes that nutritional needs can change as CKD progresses and recommends working with a healthcare professional or kidney dietitian to create an individualized eating plan.

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What Should You Eat With Stage 3 CKD?

A balanced stage 3 CKD diet generally focuses on:

• Lower-sodium foods
• Appropriate protein portions
• Fruits and vegetables based on individual potassium needs
• Whole grains and other nutritious carbohydrates
• Healthy unsaturated fats
• Minimally processed foods
• Appropriate calorie intake
• Limited highly processed foods

The goal is not simply to remove foods. Instead, it is to create an eating pattern that provides enough nutrition while helping manage factors that can affect kidney and cardiovascular health.

KDIGO recommends a healthy and diverse diet with greater consumption of plant-based foods and lower consumption of ultra-processed foods.

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7-Day Diet Plan for Stage 3 Chronic Kidney Disease

The following meal plan is an example, not a personalized medical prescription.

Your potassium, phosphorus, protein, sodium, and fluid requirements may be different.

Day 1

Breakfast

• Oatmeal topped with berries
• One boiled egg
• Unsweetened tea or coffee

Lunch

• Grilled chicken breast
• Brown rice
• Cabbage and cucumber salad
• Olive oil and lemon dressing

Dinner

• Baked fish
• Rice
• Steamed cauliflower
• Apple slices

Snack

• Unsalted crackers with a small portion of an appropriate spread

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Day 2

Breakfast

• Whole-grain toast
• Scrambled egg
• Fresh berries
• Unsweetened beverage

Lunch

• Homemade chicken and vegetable bowl
• White or brown rice
• Lettuce and cucumber
• Low-sodium dressing

Dinner

• Grilled salmon
• Couscous or rice
• Green beans
• Fresh grapes

Snack

• Apple or another fruit appropriate for your potassium needs

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Day 3

Breakfast

• Oatmeal with cinnamon
• Berries
• One egg

Lunch

• Turkey sandwich made with lower-sodium ingredients
• Lettuce and cucumber
• Fresh fruit

Dinner

• Homemade chicken stir-fry
• Rice
• Bell peppers and cabbage
• Garlic, ginger, and herbs for flavor

Snack

• Unsalted popcorn

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Day 4

Breakfast

• Whole-grain cereal with an appropriate milk alternative
• Berries
• Boiled egg

Lunch

• Baked fish
• Rice
• Mixed vegetables
• Homemade low-sodium dressing

Dinner

• Skinless chicken
• Pasta
• Cauliflower
• Side salad

Snack

• Apple slices

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Day 5

Breakfast

• Oatmeal
• Fresh berries
• Egg
• Unsweetened tea

Lunch

• Homemade chicken salad
• Lettuce
• Cucumber
• Rice or a suitable whole-grain side

Dinner

• Baked fish
• Couscous
• Green beans
• Cabbage salad

Snack

• Unsalted crackers

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Day 6

Breakfast

• Whole-grain toast
• Egg
• Fresh fruit appropriate for your individual potassium needs

Lunch

• Homemade turkey or chicken bowl
• Rice
• Cabbage
• Cucumber
• Olive oil and lemon

Dinner

• Grilled chicken
• Pasta
• Cauliflower
• Green salad

Snack

• Berries or apple

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Day 7

Breakfast

• Oatmeal with berries
• One egg
• Unsweetened tea or coffee

Lunch

• Baked fish
• Rice
• Green beans
• Cucumber salad

Dinner

• Homemade chicken and vegetable meal
• Rice or pasta
• Cauliflower and cabbage

Snack

• Fresh fruit appropriate for your dietary requirements

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Sodium: One of the Most Important Nutrients to Watch

Sodium deserves special attention in a diet plan for stage 3 chronic kidney disease.

Eating too much sodium can contribute to fluid retention and high blood pressure. High blood pressure can also place additional stress on the kidneys.

KDIGO suggests sodium intake below 2 grams per day for people with CKD, equivalent to less than approximately 5 grams of sodium chloride (salt) per day.

NIDDK also recommends limiting sodium and notes that much of the sodium people consume comes from processed, packaged, restaurant, and prepared foods.

Foods to limit

• Processed meats
• Bacon
• Sausage
• Canned soups
• Instant noodles
• Fast food
• Salty chips
• Packaged meals
• Soy sauce
• Teriyaki sauce
• Highly salted canned foods

Better choices

Use:

• Garlic
• Onion
• Lemon juice
• Black pepper
• Fresh herbs
• Vinegar
• Ginger
• Sodium-free seasonings

Check food labels carefully because foods that do not taste particularly salty can still contain substantial sodium.

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Protein: How Much Is Appropriate?

Protein is necessary for maintaining muscles and repairing tissues. However, excessive protein intake may not be appropriate for people with CKD.

For adults with CKD stages G3–G5, KDIGO suggests a protein intake of approximately 0.8 g/kg body weight per day. It also recommends avoiding high protein intake above 1.3 g/kg/day in adults with CKD who are at risk of progression.

For example, if a healthcare professional determines that a person weighs 70 kg for dietary calculation purposes, 0.8 g/kg would equal approximately 56 grams of protein per day.

However, do not use this calculation to create your own restrictive diet. Individual protein requirements can vary.

A kidney dietitian can help determine the right amount and distribute protein across meals.

Good protein choices may include:

• Fish
• Skinless poultry
• Eggs
• Tofu
• Beans and other plant proteins when appropriate
• Unsalted nuts and seeds in suitable portions

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Should You Restrict Potassium in Stage 3 CKD?

Not everyone with stage 3 CKD needs a low-potassium diet.

Potassium levels can vary depending on kidney function, medications, diabetes, and other factors.

NIDDK explains that both high and low potassium levels can cause health problems and recommends determining the appropriate potassium intake with a healthcare professional.

Therefore, don’t automatically eliminate foods such as:

• Bananas
• Tomatoes
• Potatoes
• Oranges
• Avocados

Instead, ask your healthcare professional whether your blood potassium level requires dietary changes.

If potassium is high, a dietitian can help you select lower-potassium alternatives and appropriate portions.

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What About Phosphorus?

Phosphorus may become increasingly important as CKD progresses.

High phosphorus levels can negatively affect bone and mineral health.

However, phosphorus restriction should be individualized.

One particularly useful strategy is reducing processed foods containing phosphorus additives.

When reading ingredient lists, look for ingredients containing “PHOS.”

Examples include:

• Phosphoric acid
• Disodium phosphate
• Monosodium phosphate

NIDDK notes that phosphorus additives can contribute significantly to phosphorus intake and recommends checking ingredient labels when phosphorus restriction is needed.

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Best Foods to Include in a Stage 3 CKD Diet

Depending on your individual laboratory results and dietary requirements, nutritious foods may include:

Fruits

• Apples
• Berries
• Grapes
• Peaches

Vegetables

• Cabbage
• Cauliflower
• Cucumber
• Green beans
• Bell peppers
• Lettuce

Grains

• Oats
• Rice
• Pasta
• Whole-grain foods when appropriate

Protein

• Fish
• Chicken
• Eggs
• Tofu
• Selected plant proteins

Healthy Fats

• Olive oil
• Unsalted nuts in appropriate portions
• Seeds when appropriate

The exact combination should be adjusted according to your laboratory results and medical advice.

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Foods to Limit With Stage 3 CKD

Some foods are best limited because they can make sodium, sugar, saturated fat, or phosphorus intake harder to control.

These include:

• Processed meats
• Fast food
• Instant noodles
• Salty snacks
• Highly processed frozen meals
• Sugary beverages
• Foods with large amounts of added sugar
• Highly processed sauces
• Foods containing phosphorus additives

This does not necessarily mean you can never eat these foods. The overall pattern of your diet matters.

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What About Fluids?

Fluid requirements vary among people with CKD.

Some people with stage 3 CKD do not need a specific fluid restriction, while others may need to adjust fluid intake because of kidney function, swelling, heart conditions, medications, or other factors.

NIDDK recommends discussing your daily fluid needs with a healthcare professional.

Do not force yourself to drink excessive amounts of water simply because you have CKD.

At the same time, do not unnecessarily restrict fluids unless your healthcare team recommends it.

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Kidney-Friendly Meal Preparation Tips

How you prepare food can be just as important as what you buy.

Cook at Home More Often

Preparing meals yourself gives you greater control over:

• Sodium
• Sauces
• Added sugar
• Portion sizes
• Cooking oils
• Ingredients

Use Herbs Instead of Salt

Try combining:

• Garlic
• Rosemary
• Basil
• Parsley
• Lemon
• Black pepper
• Paprika

Read Labels

Pay particular attention to:

• Sodium
• Serving size
• Added sugars
• Ingredients containing “PHOS”
• Potassium chloride

NIDDK recommends checking food labels and choosing foods with less sodium, especially when packaged foods are part of your diet.

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Kidney-Friendly Meal Planning Resource

Planning meals every week can be challenging, particularly when you are trying to manage sodium, protein, potassium, and phosphorus.

A kidney-friendly cookbook can provide additional meal ideas and help make grocery shopping easier.

You can explore this kidney-friendly cookbook resource on Amazon:

Kidney-Friendly Cookbook – View on Amazon:
Kidney-Friendly Cookbook – View on Amazon

Affiliate Disclosure: CKD Online may earn a commission if you purchase through this link, at no additional cost to you.

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Should You Use a CKD Supplement or Support Program?

People with CKD often encounter products marketed online as kidney cleanses, detox formulas, or kidney-support supplements.

Be careful with claims that a supplement can cure, reverse, or repair chronic kidney disease. These claims should not replace evidence-based medical care.

Some supplements may also interact with medications or contain minerals and herbal ingredients that are not appropriate for everyone with CKD.

If you are considering a commercial CKD support program, you can review the information here:

Learn More About a CKD Support Program

Affiliate Disclosure: CKD Online may earn a commission if you purchase through this link. This link does not represent a claim that the program can cure or reverse CKD. Talk with your healthcare professional before using supplements or making major changes to your treatment plan.

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How to Make a Stage 3 CKD Diet Easier

Changing your diet all at once can feel overwhelming.

Instead, try making gradual changes.

Week 1: Focus on Sodium

Start by reducing processed meats, salty snacks, fast food, and high-sodium sauces.

Week 2: Improve Protein Portions

Review the amount of meat and other protein foods you consume and discuss your ideal protein intake with a kidney dietitian.

Week 3: Add More Whole Foods

Increase the variety of minimally processed foods that fit your individual potassium and phosphorus requirements.

Week 4: Improve Meal Preparation

Cook more meals at home and experiment with herbs, spices, lemon, garlic, and other sodium-free flavorings.

Small sustainable changes may be easier to maintain than an extremely restrictive diet.

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Frequently Asked Questions

What is the best diet plan for stage 3 chronic kidney disease?

The best diet plan is individualized. In general, it emphasizes lower sodium, appropriate protein intake, nutritious whole foods, healthy fats, and fewer highly processed foods. Potassium, phosphorus, and fluid restrictions should be based on your individual health and laboratory results.

Can I eat rice with stage 3 CKD?

Rice can be included in many CKD meal plans. The appropriate type and portion depend on your overall nutritional needs and other health conditions.

Can I eat chicken with stage 3 kidney disease?

Chicken can be a source of protein, but portion size and preparation matter. Choose minimally processed chicken when possible and avoid heavily salted or processed versions.

Should I avoid bananas with stage 3 CKD?

Not necessarily. Whether bananas fit your diet depends partly on your blood potassium level and individual dietary requirements.

Can I drink coffee with stage 3 CKD?

Coffee is not automatically prohibited for everyone with CKD. However, what you add to coffee and your overall caffeine and fluid intake may matter. Discuss your intake with your healthcare professional if you have specific concerns.

Do I need a low-phosphorus diet?

Not necessarily. Phosphorus restriction depends on your blood phosphorus level and individual medical situation. If restriction is recommended, reducing processed foods with phosphorus additives can be a useful strategy.

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Final Thoughts

Creating a diet plan for stage 3 chronic kidney disease does not mean eliminating every food you enjoy.

The most effective approach is usually a balanced, sustainable eating pattern that emphasizes nutritious foods while managing nutrients that may become problematic as kidney function declines.

Key principles include:

• Keep sodium intake under control.
• Follow an appropriate protein intake.
• Choose minimally processed foods.
• Eat a variety of fruits and vegetables according to your potassium needs.
• Pay attention to phosphorus additives when phosphorus restriction is necessary.
• Choose healthier unsaturated fats.
• Avoid excessive protein intake.
• Maintain adequate calorie intake.
• Follow individualized fluid recommendations.
• Work with a kidney dietitian whenever possible.

Most importantly, do not create a highly restrictive kidney diet based solely on your CKD stage. Your blood and urine tests provide important information about what dietary changes you actually need.

A registered dietitian who specializes in kidney disease can help turn these general principles into a personalized meal plan that fits your health needs, food preferences, lifestyle, and laboratory results.

Medical Disclaimer: This article is intended for educational purposes only and does not replace professional medical advice, diagnosis, or treatment. If you have stage 3 chronic kidney disease, consult your physician or a registered dietitian before making significant changes to your diet, particularly if you have abnormal potassium or phosphorus levels, diabetes, heart disease, high blood pressure, or take medications that affect kidney function.