Blueberries and chronic kidney disease: the berry that does it all

Blueberries are small, vibrant berries with a deep blue-purple hue and a naturally sweet yet tart flavour. Popular in everything from baked goods and smoothies to sauces and snacks, they are a versatile fruit loved around the world. Major blueberry producers include the United States, Canada, Peru, Chile, and Mexico where growing conditions offer ample sun and slightly acidic soil. Beyond their delicious taste, blueberries are known for their health benefits. Rich in antioxidants, vitamins and fiber, they’re nutritious and an easy addition to any diet. Let’s take a look at how you can include blueberries and chronic kidney disease.

Blueberries and chronic kidney disease – the nutrition facts

Blueberries are a kidney-friendly fruit thanks to their low levels of potassium, phosphorus, and sodium. They are also a good source of fiber, which can support insulin sensitivity and help reduce inflammation, both of which are important for maintaining kidney health. In addition, blueberries are rich in antioxidants like anthocyanins, which may help lower oxidative stress and inflammation—both common concerns for those living with CKD.

The benefits don’t stop there, blueberries can also play a role in… 

Improving cognitive health

Reducing skin inflammation

Lowering blood pressure

Managing diabetes 

Here is the nutrition information per 100 grams of blueberries or about 1/2 cup:

• 64 Calories 
• 0.7 g Protein
• 0.31 g Fat
• 14.6 g of Carbohydrate
• 2.4 g Fiber
• 9.36 g of Total Sugars
• 12 mg of Calcium
• 0.34 mg of Iron 
• 13 mg of Phosphorus
• 86 mg of Potassium
• 6.2 mg of Magnesium
• 8.1 mg of Vitamin C
• 28.6 mcg of Vitamin K

Nutrition facts

Blueberries are rich in essential vitamins and minerals, including vitamin C, vitamin K, fiber, and magnesium. 

Vitamin C 

• Plays a key role in tissue growth and repair
• Acts as a powerful antioxidant
  • Antioxidants help protect your cells from damage caused by free radicals—unstable molecules that can contribute to chronic conditions like heart disease and cancer if not neutralized. 
• Boosts iron absorption, supporting healthy blood and energy levels

Vitamin K 

• Vital for bone health and proper blood clotting
• Plays a key role in helping calcium bind to the bone, reducing the risk of fractures 

Fiber

• Supports digestive health by promoting regular bowel movements
• Helps regulate blood sugar
• Supports heart health by lowering LDL cholesterol
• Keeps you feeling full longer

Magnesium 

• Plays a role in muscle and nerve function, energy production, and maintaining healthy blood pressure
• Contributes to bone health, working alongside calcium and vitamin K

Packed with essential nutrients, blueberries are a simple and tasty way to boost your overall health. For maximum nutritional value, opt for fresh or frozen varieties—both retain more vitamins and antioxidants than dried blueberries, which can contain added sugars and lose some of their health benefits during processing making blueberries and chronic kidney disease work together.

Enjoying blueberries and chronic kidney disease

Blueberries are a nutrient-dense, kidney-friendly fruit that make a tasty and effortless addition to your daily diet. Whether you enjoy them fresh or frozen, their natural sweetness and versatility make them perfect for everything from breakfasts to snacks. If you’re curious about how blueberries might fit into your diet—or what portion size is right for you—we’d be happy to help at Kidney Nutrition.

This article was written by Kimia Oshaghi, Nutrition Student Volunteer.
This article was reviewed by Emily Campbell, RD CDE MScFN.