What fruits are good for kidneys and liver

Medically Reviewed by Minesh Khatri, MD on August 29, 2022

If you have chronic kidney disease (CKD), it’s important to watch what you eat and drink. That’s because your kidneys can’t remove waste products and fluid from your body the way they should. A kidney-friendly diet can help you stay healthier longer.

A major function of the kidneys is to get rid of waste and extra fluid from your body through your pee. They also:

  • Balance your body’s minerals, like salt and potassium
  • Balance your body’s fluids
  • Make hormones that affect the way other organs work

A kidney-friendly diet is a way of eating that helps protect your kidneys from further damage. You’ll have to limit some foods and fluids so other fluids and minerals like electrolytes don’t build up in your body. At the same time, you’ll have to make sure you get the right balance of protein, calories, vitamins, and minerals.

If you’re in the early stages of CKD, there may be few, if any, limits on what you can eat. But as your disease gets worse, you’ll have to be more careful about what you put into your body.

The doctor may suggest you work with a dietitian to choose foods that are easy on your kidneys. They might recommend:

This mineral is found naturally in many foods. It’s most common in table salt.

Sodium affects your blood pressure. It also helps to maintain the water balance in your body. Healthy kidneys keep sodium levels in check. But if you have CKD, extra sodium and fluids build up in your body. This can cause a number of problems, like swollen ankles, high blood pressure, shortness of breath, and fluid buildup around your heart and lungs. You should aim for less than 2 grams of sodium in your daily diet.

Take these simple steps to cut the sodium in your diet:

  • Avoid table salt and high-sodium seasonings (soy sauce, sea salt, garlic salt, etc.).
  • Cook at home -- most fast foods are high in sodium.
  • Try new spices and herbs in place of salt.
  • Stay away from packaged foods, if possible. They tend to be high in sodium.
  • Read the labels when shopping, and choose low-sodium foods.
  • Rinse canned foods (veggies, beans, meats, and fish) with water before serving.

You need these minerals to keep your bones healthy and strong. When your kidneys are healthy, they remove the phosphorus you don’t need. But if you have CKD, your phosphorus levels can get too high. This puts you at risk for heart disease. What’s more, your calcium levels begin to drop. To make up for it, your body pulls it from your bones. This can make them weak and easier to break.

If you have late-stage CKD, your doctor may advise you to get no more than 1,000 milligrams (mg) of phosphorus mineral each day. You can do this by:

  • Choosing foods with low levels of phosphorus (look for “PHOS” on the label)
  • Eating more fresh fruits and veggies
  • Choosing corn and rice cereals
  • Drinking light-colored sodas
  • Cutting back on meat, poultry, and fish
  • Limiting dairy and processed foods

Foods that are high in calcium also tend to be high in phosphorus. The doctor might suggest you cut back on calcium-rich foods. Dairy foods that are lower in phosphorus include:

  • Brie or Swiss cheese
  • Regular or low-fat cream cheese or sour cream
  • Sherbet

The doctor might also tell you to stop taking over-the-counter calcium supplements and suggest a phosphorus binder, a medicine that controls your phosphorus levels.

This mineral helps your nerves and muscles work properly. But when you have CKD, your body can’t filter out extra potassium. When you have too much of it in your blood, it can lead to serious heart problems.

Potassium is found in a lot of fruits and veggies, like bananas, potatoes, avocados, oranges, cooked broccoli, raw carrots, greens (except kale), tomatoes, and melons. These foods can affect potassium levels in your blood. Your doctor will let you know if you need to limit this mineral in your diet. If so, they may recommend you try low-potassium foods, like:

  • Apples and apple juice
  • Cranberries and cranberry juice
  • Strawberries, blueberries, raspberries
  • Plums
  • Pineapples
  • Peaches
  • Cabbage
  • Boiled cauliflower
  • Asparagus
  • Beans (green or wax)
  • Celery
  • Cucumber

As your CKD gets worse, you may need to make other changes to your diet. This might involve cutting back on foods that are high in protein, especially animal protein. These include meats, seafood, and dairy products. You may also need extra iron. Talk to your doctor about which iron-rich foods you can eat when you have CKD.

DASH stands for Dietary Approaches to Stop Hypertension. It’s a diet rich in fruits, veggies, low-fat dairy products, whole grains, fish, poultry, beans, seeds, and nuts. It’s low in sodium, sugars and sweets, fats, and red meats.

Talk to your doctor about it if you have CKD. They’ll let you know if there are certain reasons you shouldn’t try the DASH diet.

It isn’t an option if you’re on dialysis.

If you have early-stage CKD, you probably don’t need to cut back on fluids. But if your condition gets worse, your doctor will let you know if you need to limit those, too. To cut back on fluids you can:

  • Avoid salty foods
  • Manage your thirst with sugar-free hard candies, ice chips, or frozen grapes
  • Track your fluid in a journal or with a marked container, and track your weight

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Drinking water is the best way to keep the water levels in your body balanced. No need to go overboard, but you should aim for 6-8 glasses a day depending on your body weight. If you are more active, you’ll need to drink more since you’ll be losing water through your sweat as well.

Water has many positive effects on the body, but the most important one for your kidneys is that it helps flush out toxins that can lead to bacterial infection or kidney stones along with other harmful particles in the blood.

Cranberry Juice

When shopping for cranberry juice, always read the label. Some juice brands contain very little actual fruit content and are instead loaded up with sugar. To get the best health benefits, be sure to choose 100% organic water-based cranberry juice.

So how does cranberry juice help? It can prevent bacteria from sticking to the walls of your kidneys, which helps prevent an infection from forming in the first place.

Cranberries

Cranberries are so good for your health that they really do deserve two entries. Interestingly, eating whole cranberries has other benefits that just drinking the juice doesn’t provide. Eating cranberries can help prevent the growth of ulcers and bacteria in your urinary tract, and can help manage any current bacteria/ulcers you may already have.

They do this by making your urine more acidic, keeping bacteria from attaching to the inside of the bladder. In women especially, this has the added benefit of helping prevent urinary tract infections. At the grocery store, be sure to choose fresh cranberries over dried ones to get the most nutritional value out of them.

Apples

An apple a day really does help keep the doctor away! High in fiber and anti-inflammatory properties, apples prevent constipation, protect against heart disease, and decrease your risk of cancer.

Apples contain a fiber called pectin that has a few key health benefits specifically for kidneys. Pectin lowers certain risk factors for kidney damage, such as high cholesterol and blood sugar. And, as an added bonus, they are a healthy way to curb a sugar craving. They are great by themselves, can be added to salads, or even placed on a sandwich for some extra crunch and bite.

Mushrooms

Vitamin D is extremely important for those at risk for kidney disease because it helps regulate kidney function. While many people think of oranges and orange juice as ideal sources for vitamin D (which they are), mushrooms are an excellent source as well.

While most mushrooms are chock-full of vitamin D, shiitake mushrooms have been found to consistently have the most. And did you know you can get even more vitamin D out of them if you store them correctly? A recent study found that mushrooms dried upside down in direct sunlight had significantly more vitamin D in them than those that didn’t.

Egg Whites

Egg whites and yolks have very different nutritional properties. The whites provide a high quality protein, which is ideal for whole body health. However, egg yolks contain phosphorus, which can be especially dangerous for people with kidney disease.

To be clear, phosphorus helps the body perform a lot of essential functions. It strengthens bones, helps transport oxygen, develops connective tissue, and much more. Unfortunately, unhealthy kidneys don’t have the capacity to remove excess phosphorus from the blood. That results in an unsafe build up of phosphorus that can cause serious bone and heart issues.

Kale

There was a point in time when kale was everywhere. While it may not be as trendy as it once was, it is still an excellent source of nutrition. Kale is packed with Vitamins A and C, which can prevent inflammation and protect the immune system.

There are several other leafy greens that have these same benefits, but they also tend to be high in potassium. People with kidney disease can’t process large amounts of potassium, which can cause hyperkalemia. Symptoms of hyperkalemia include fatigue, weakness and heart arrythmias.

Kale is a great choice for those with kidney disease because it has all of the nutritional benefits of other greens without the high levels of potassium.

Cauliflower

This vegetable brings lots of vitamin C to your plate, along with folate and fiber. In addition, it contains compounds that help your liver neutralize toxic substances. Perhaps most importantly for those with kidney issues is the fact that it is low in oxalates. Oxalates are found in a variety of foods and have been linked to the development of kidney stones.

One of the best things about cauliflower is how versatile it is. You can enjoy it raw, add it to your salad, or substitute it for mashed potatoes. Today, lots of people are substituting it for chicken and making spicy cauliflower wings. There are all kinds of tasty options!

Nutrients to be aware of

Keep in mind that there are plenty of other healthy options that will do your kidneys, and your body, plenty of good. If you do have chronic kidney disease, there are a few nutrients you should be aware of.

Your kidneys regulate potassium, which is why it’s so important to monitor how much you are eating on a regular basis. Your kidneys also have a role in red blood cell production, meaning that if they aren’t functioning correctly your count may be low. Eating iron-rich foods can help prevent this and help keep your energy levels up.

On the opposite side of the equation, salt can be your enemy. Too much salt can raise your blood pressure and make your heart and kidneys work too hard. Be careful about how much salt you use in cooking and also watch the salt content of pre-packaged foods like canned soups, frozen dinners, and boxed meals. Salt substitutes may also contain a lot of potassium, so try herbs to add flavor and give it some time. You can get used to eating less salt, but it does take six to eight weeks for your taste buds to get used to it.

Lastly, we mentioned phosphorus, but it is worth repeating. A low-phosphorus diet should include lots of fresh fruits and veggies, rice milk, corn and rice cereals, as well as lemonade and even ginger ale.

Importance of Kidney Disease Screenings

Kidney disease screening from Life Line Screening uses a simple finger-stick test to assess how well your kidneys are functioning. It uses an FDA-approved device adopted by more than 250 hospitals across the country.

Common risk factors for kidney disease include increased age, family history, race and ethnicity (African Americans, Asians, Hispanics, American Indians and Pacific Islanders are at increased risk), diabetes, high blood pressure, hereditary factors, and abnormally elevated creatinine levels or decreasing glomerular filtration rates (GFR).

If you have any of the above risk factors, or if you’re over the age of 60, you should seriously consider a kidney disease screening. Learn more now or contact us with any questions you might have.

Life Line Screening 2021 update