28 Best Foods for Your Kidneys
The kidneys are essential organs that filter waste products from the body and maintain fluid balance, so maintaining their health is essential. For those with chronic kidney disease (CKD) or who wish to avoid developing any kidney issues, a healthy kidney diet that promotes kidney function can be very beneficial.
This article covers good foods for kidneys that support them and those that should be completely avoided. Making wise food decisions daily enhances not only our overall well-being but also our health.
What are the Functions of Kidneys in the Human Body?
The two kidneys, shaped like beans, are found on either side of the spine, just below the rib cage. These organs filter waste products out of the blood while retaining essential substances body cells need, such as water and electrolytes. They also produce urine that passes through the ureters into the bladder before being eliminated from the body during urination.
Moreover, apart from eliminating waste from our body systems, they regulate blood pressure levels, balance red cell production rates within human bodies, and maintain electrolyte balance, which helps in muscle contraction, among many others. A proper kidney diet is essential for sustaining the body's pH and electrolyte balance.
28 Best Foods for Kidneys
Your general health and the proper functioning of your body depend on the state of your kidneys. Eating the correct foods can assist in detoxification, reduce kidney stress, and enhance their ability to function at their best.
Below is a comprehensive list of the 28 best foods for kidneys, categorised into different types and their nutrient content per 100g for your convenience. These foods offer key nutrients to support kidney health and should be incorporated into a balanced diet.
List of Vegetables for Kidneys
Vegetables on this list are low in potassium, sodium, and phosphorus, which makes them perfect for promoting kidney health. These nutrient-dense options provide various vitamins and minerals necessary to keep kidney function at its best.
SNo. |
Vegetables | Description | Sodium (mg) | Potassium (mg) | Phosphorus (mg) |
| 1 | Cabbage | A low-potassium vegetable is rich in vitamins K, C, and B complex. Cabbage supports digestive health with its fibre content and provides antioxidant properties. | 11 mg | 119 mg | 18 mg |
| 2 | Cauliflower | Low in potassium, high in vitamin C and folate. Cauliflower offers anti-inflammatory benefits and can be used as a versatile substitute in various recipes. | 19 mg | 176 mg | 40 mg |
| 3 | Bell Pepper | A source of vitamins C and A, bell peppers add flavour and colour to dishes while being low in potassium. They support the immune system with their antioxidant content. | 2.5 mg | 175 mg | 19 mg |
| 4 | Radish | Low in potassium and sodium, radishes contain vitamin C and other antioxidants. These root vegetables provide a crunchy addition to salads and snacks. | 23 mg | 135 mg | 12 mg |
| 5 | Arugula | Low in potassium and sodium, arugula provides nitrates beneficial for kidneys. It also contains essential minerals and vitamins such as calcium and K. | 6 mg | 74 mg | 10 mg |
List of Fruits and Juices for Kidneys
The selection of fruits and juices presented here provides beneficial nutrients and hydration while being low in potassium and phosphorus. These options can be a healthy addition to your diet, aiding in kidney support and overall well-being.
SNo. |
Fruits and Juices | Description | Sodium (mg) | Potassium (mg) | Phosphorous (mg) |
| 6 | Pineapple | A sweet, tropical fruit low in potassium and phosphorus. Pineapple is also rich in vitamin C and fibre, making it a suitable choice for kidney health. | 1 mg | 109 mg | 8 mg |
| 7 | Blueberries | Loaded with antioxidants and vitamins, blueberries are low in sodium and phosphorus. They boost immunity and may help reduce inflammation. | 1 mg | 114 mg | 18 mg |
| 8 | Red Grapes | Red grapes provide antioxidants that reduce inflammation and support kidney function. They contain low sodium and moderate potassium levels. | 2 mg | 144 mg | 15 mg |
| 9 | Lemon Juice | Lemon juice helps flush out toxins and supports kidney health. It is high in vitamin C and low in potassium, making it beneficial for those with kidney concerns. | 1 mg | 103 mg | 10 mg |
| 10 | Apple Juice | Apple juice is low in potassium and phosphorus, making it a kidney-friendly beverage. It's a good source of hydration and provides natural sweetness. | 1 mg | 102 mg | 10 mg |
List of Dairy Products and Nuts for Kidneys
This list features dairy products and nuts that offer healthy fats, protein, and essential nutrients. They are carefully chosen to be low in phosphorus and moderate in potassium, making them suitable for a kidney-friendly diet.
| SNo. | Dairy Products and Nuts | Description | Sodium (mg) | Potassium (mg) | Phosphorus (mg) |
| 11 | Egg Whites | Egg whites provide high-quality protein with low phosphorus. They are a great option for individuals on a kidney-friendly diet. | 149 mg | 108 mg | 10 mg |
| 12 | Macadamia Nuts | Macadamia nuts offer healthy fats and fibre, which are beneficial for kidney health. They are low in phosphorus and can be a good snack choice. | 1.4 mg | 103 mg | 53 mg |
| 13 | Almond Milk | Almond milk is a dairy alternative that is low in potassium and phosphorus. It offers healthy fats and vitamins. | 9 mg | 28 mg | 15 mg |
| 14 | Cottage Cheese | A good source of protein, cottage cheese is low in phosphorus and potassium. It can be incorporated into various meals for kidney-friendly nutrition. | 110 mg | 104 mg | 52 mg |
| 15 | Greek Yoghurt | Greek yoghurt provides protein and probiotics, which aid in digestion. It is lower in potassium and phosphorus compared to traditional yoghurt. | 45 mg | 141 mg | 76 mg |
List of Vegetarian Food for Kidneys
The foods in this list encompass a variety of plant-based sources of protein, fibre, and minerals. They provide essential nutrients while keeping sodium, potassium, and phosphorus intake at a moderate level.
SNo. |
Food | Description | Sodium (mg) | Potassium (mg) | Phosphorus (mg) |
| 16 | Bulgur | A whole grain is low in sodium, potassium, and phosphorus. Bulgur is a good source of fibre, vitamin B folate, and iron. | 9 mg | 62 mg | 36 mg |
| 17 | Tofu | Tofu is a plant-based protein source that is lower in sodium and potassium. It offers a versatile alternative for those following a vegetarian diet. | 10 mg | 117 mg | 58 mg |
| 18 | Lentils | Lentils are a nutrient-dense legume offering plant-based protein and fibre. They are moderate in phosphorus and potassium, making them a good choice for kidney health. | 3 mg | 369 mg | 168 mg |
| 19 | Chickpeas | Chickpeas are a good source of plant-based protein and fibre. They are moderate in potassium and phosphorus, making them a kidney-friendly option. | 24 mg | 291 mg | 176 mg |
| 20 | Black Beans | Black beans offer protein and fibre and are moderate in potassium and phosphorus. They support kidney health as part of a balanced diet. | 1 mg | 305 mg | 140 mg |
| 21 | Quinoa | Quinoa is a nutrient-rich grain that is low in sodium and potassium. It is a good source of fibre, protein, and magnesium. | 5 mg | 172 mg | 152 mg |
| 22. | Buckwheat | Buckwheat is a gluten-free grain rich in nutrients, fibre, and antioxidants. It is low in sodium and moderate in potassium. | 1 mg | 460 mg | 195 mg |
| 23. | Split Peas | Split peas are high in fibre and plant-based protein, providing beneficial nutrients. They are moderate in potassium and phosphorus, making them suitable for a kidney-friendly diet. | 8 mg | 341 mg | 165 mg |
List of Non-Vegetarian Food for Kidneys
This list includes animal-based proteins that are low in sodium and moderate in potassium and phosphorus. These choices provide essential nutrients for kidney health while maintaining a balanced diet.
SNo. |
Food | Description | Sodium (mg) | Potassium (mg) | Phosphorus (mg) |
| 24 | Eggs | Eggs provide high-quality protein with a moderate amount of phosphorus. They offer a versatile option for a balanced diet. | 140 mg | 126 mg | 201 mg |
| 25 | Pork Tenderloin | Pork tenderloin is a lean cut of meat that is low in sodium and moderate in potassium and phosphorus. It is a good source of protein. | 68 mg | 378 mg | 184 mg |
| 26 | Sardines | Sardines are a source of omega-3 fatty acids and protein, beneficial for heart and kidney health. They contain moderate levels of sodium. | 210 mg | 383 mg | 213 mg |
| 27 | Chicken Thighs | Chicken thighs provide good-quality protein with moderate phosphorus levels. Opt for skinless and low-fat options for better kidney health. | 74 mg | 241 mg | 220 mg |
| 28 | Venison | Venison is a lean red meat that is low in fat, sodium, and potassium. It offers a high protein content and is beneficial for kidney health. | 74 mg | 345 mg | 200 mg |
How to Maintain a Healthy Food Diet for Your Kidneys?
A kidney-friendly diet means you balance nutrients in your body, like sodium, potassium, and phosphorus, to maintain proper hydration. These steps will help support the best possible functioning of your kidneys and your overall health.
- Limit Salt Intake: Remove salts from your food by avoiding processed ones and using herbs or spices for taste instead.
- Regulate Consumption of Potassium: Watch out for foods with high potassium levels, such as bananas.
- Control Phosphorus Levels: To prevent strain on the kidneys, limit intake of high phosphorus foods like dairy products and nuts.
- Keep Up With Water Intake: Drink enough throughout the day so that they can flush out toxins from our body systems through urine while maintaining fluid balance, too.
- Healthy Source of Protein: Opt for plant-based proteins, lean meats, or skinless poultry, which, when taken reasonably, lighten kidney functions.
10 Food Items to Avoid for a Healthy Kidney
Certain foods for kidneys should be avoided by people with kidney problems or who want healthy kidneys. These meals increase waste build-up within the kidneys, raise blood pressure levels, and affect overall fluid equilibrium.
SNo. |
Food Item | Reasons to Avoid |
| 1 | Canned Food | High in sodium and preservatives, canned foods can lead to fluid retention and increased blood pressure. |
| 2 | Processed Meat | Contains high levels of sodium and preservatives that can increase the workload on the kidneys and elevate blood pressure. |
| 3 | Dark-Coloured Sodas | These drinks often contain phosphorus additives, which can negatively impact kidney function and calcium levels. |
| 4 | Bananas | High in potassium, which can be harmful for individuals with kidney issues as it may disrupt electrolyte balance. |
| 5 | Whole Wheat Bread | Contains higher levels of phosphorus and potassium compared to white bread, which can strain the kidneys. |
| 6 | Brown Rice | It is rich in phosphorus and potassium, making it challenging for the kidneys to maintain a healthy balance of these minerals. |
| 7 | Avocado | Avocado is high in potassium, which can be problematic for kidney health, especially in large quantities. |
| 8 | Potatoes | Particularly when baked with skin, potatoes contain high potassium levels that may pose a risk to kidney function. |
| 9 | Raisins, Prunes and Dates | These dried fruits are high in potassium and sugar, which can be taxing on the kidneys and disrupt electrolyte balance. |
| 10 | High-Fat Dairy | High in saturated fats, these products can raise cholesterol levels and increase the risk of kidney disease over time. |
What Is the Impact of Bad Food Choices on Your Kidneys?
Poor food choices can stress your kidneys and increase your risk of developing kidney disease or damage. Poor dietary decisions can worsen renal issues, cause waste to accumulate more rapidly, and upset the balance of fluids and electrolytes.
FAQs about Food Items for Kidneys
Is coffee bad for the kidneys?
No, coffee is not bad for your kidneys if you are not addicted to it or consume it in high amounts. But if you consume it more than three times a day, then it can affect your kidneys.
Which exercise is ideal for healthy kidneys?
Exercise, such as walking, swimming, skiing, aerobic dancing, and bicycling, can help keep kidneys healthy.
Can I eat dairy products if I have kidney disease?
Dairy products are high in phosphorus and potassium, which can be challenging for individuals with kidney disease. It’s important to limit the intake of high-phosphorus dairy products such as cheese and milk.
Is drinking herbal tea beneficial for the kidneys?
Yes, herbal teas, such as chamomile and peppermint, can be beneficial as they are typically low in potassium. However, some herbal teas may interact with medications, so it's best to consult a healthcare provider.
What role does water play in kidney health?
Staying hydrated is essential for kidney health, as it helps the kidneys flush out waste and maintain fluid balance.
Should I avoid certain vegetables if I have kidney disease?
Some vegetables, like spinach and swiss chard, are high in potassium and may need to be limited.
Is alcohol consumption harmful to the kidneys?
Yes, excessive alcohol consumption can strain the kidneys and increase the risk of kidney disease.
How can I reduce salt intake in my diet?
To reduce salt intake, avoid processed foods, use herbs and spices for flavour, and check food labels for sodium content. Cooking at home can help you control your sodium consumption.
Is there a safe amount of potassium I should consume?
Potassium needs vary depending on your individual health and kidney function.
Are supplements safe for kidney health?
Some supplements may contain high levels of certain minerals that can affect kidney health. Always consult with a healthcare provider before taking any supplements.
Can I use salt substitutes if I have kidney issues?
Some salt substitutes are high in potassium, which can be harmful to those with kidney issues. Always check the ingredients and consult with a healthcare provider.
Is there a link between sugar consumption and kidney health?
Yes, high sugar consumption can lead to obesity and diabetes, which are risk factors for kidney disease. Limiting sugar intake is important for overall health and kidney function.
What types of grains are best for kidney health?
Whole grains can provide important nutrients but may contain moderate amounts of phosphorus and potassium.
Are there specific fruits I should avoid if I have kidney disease?
Fruits high in potassium, such as bananas and oranges, may need to be limited. However, many other fruits low in potassium can be enjoyed.
Does smoking affect kidney health?
Yes, smoking can increase the risk of kidney disease and impair kidney function. Quitting smoking is beneficial for overall and kidney health.
How do I know if my diet is affecting my kidneys?
Signs of dietary impact on kidneys may include changes in urine, swelling, or blood pressure.