Milk has long been recognized as a polarizing food in many ways, including in kidney disease and the renal diet. Many have wondered, is milk bad for kidneys? What about the different stages of kidney disease? There are several factors that contribute to the answer to this question. Phosphorus, potassium, and protein all play a role in kidney health, especially with the different stages of kidney disease. And with so many choices when it comes to milk, it can become very confusing to figure out the best type of milk for kidney disease. In this article, we will review the different milk options and which is the best milk for kidney disease.
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Table of Contents
Milk and Kidney Disease
Milk is part of the dairy food group. It is a well-known good source of calcium.
It is also a source of phosphorus and potassium. Due to concerns around these nutrients, some consider milk bad for kidneys as it makes it harder to control potassium or even phosphorus.
It’s important to know that everyone has different dietary needs. This is especially important for people with chronic kidney disease.
Protein
Many people with kidney disease that are not on dialysis need to watch for protein. This is because too much protein can be hard on the kidneys.
The protein amount in milk will vary based on the type of milk. Types of milk highest in protein include cow’s milk and soy milk.
The lowest protein milk options include oat milk and rice milk.
Phosphorus
Phosphorus is a mineral found as an organic and/or inorganic substance in foods. The type of phosphorus can make a difference, especially for kidney patients.
Inorganic Phosphorus
Inorganic phosphorus is typically added to foods. You will see it in the Ingredients List as an added ingredient.
An example of this would be phosphoric acid.
Too much inorganic phosphorus in the form of additives has been linked to higher risks of chronic illnesses, including cardiovascular disease.
Label reading for phosphorus additives is very important when it comes to limiting phosphorus in the renal diet.
Organic Phosphorus
Organic phosphorus means it is naturally occurring.
Cow’s milk and milk products have organic phosphorus because it is an animal product.
Plant-based milks such as oat, cashew, and almond will also have some organic phosphorus as plant also naturally contain phosphorus.
You may see phosphorus listed in the nutrition facts. If you only see it here and not in the ingredients, it is likely not going to be absorbed very well.
Potassium
Milk is also a source of potassium. Varying types of milk will have different amounts, based on the main ingredient of the milk or milk alternative.
Low Potassium Milk
Some kidney patients may be instructed to limit potassium due to high potassium levels in their blood.
In these cases, sticking to a low potassium milk may help.
The lowest potassium milk options are cashew milk, rice milk, and ready-to-drink coconut milk.
Potassium Additives in Milk
Similarly to phosphorus, milk may have potassium additives.
There is some thought behind potassium additive absorption having a bigger impact on potassium blood levels.
In cases of high potassium blood levels, it may be important to watch for and limit potassium additives in foods.
For example, potassium citrate. This may be found in milks like fortified almond milk.
Can you find the potassium additive in the ingredient list below?
High Potassium Milk
Many kidney patients are instructed to get more potassium in their diet.
In these situations, a higher potassium milk can be included to boost potassium.
The highest potassium milk options include cow’s milk and canned coconut milk.
Calcium
As mentioned earlier, cow’s milk is known as a good source of calcium. Some people with kidney disease need to eat less calcium in their diet and some need to eat more.
An example of someone who would need more calcium is a person with calcium oxalate kidney stones.
An example of someone who may need to limit calcium is someone on dialysis.
The highest calcium milk is coconut milk and cow’s milk.
Many plant-based milk options are also fortified with calcium, which may provide extra calcium.
Shopping for The Right Milk
Here are some tips for your next grocery store trip. These days, there’s more options than just grabbing a gallon of cow’s milk.
Shelf-stable milk vs. refrigerated milk
Milk can be found either cold or at room temperature in the grocery store.
You may prefer to have some cold milk on hand and shelf-stable milk available for emergencies.
In our household, we keep unsweetened almond milk* and soy milk* on hand- both shelf-stable. We move one carton at a time to the fridge.
Doing this saves fridge space and money, buying in bulk.
Label reading for additives
It is especially important to read the ingredients list to weed out any milk that has phosphorus additives.
Remember that added potassium additives can contribute to potassium in your diet.
Additives can be found in both shelf-stable and refrigerated milk options. It’s good practice to read labels when looking for your best milk for kidney disease.
Animal Milk Options
Just like plant-based milk options, there are animal milk options available. The options will vary based on your geographical location and cultural food preferences.
Next are some details about the most common animal options of milk for kidney disease.
Cow’s Milk
One of the most common types of milk is cow’s milk. There are several types of cow’s milk to choose from, with different amounts of fat. Here is a table that includes the different types of cow’s milk, based on fat content.
Cow’s Milk Options | Calories | Fat (g) | Protein (g) | Potassium (mg) | Phosphorus (mg) | Calcium (mg) |
---|---|---|---|---|---|---|
Whole | 150 | 8 | 8 | 374 | 251 | 306 |
2% | 120 | 5 | 8 | 390 | 252 | 309 |
1% | 100 | 2.5 | 8 | 366 | 232 | 305 |
Skim | 80 | 0 | 8 | 411 | 263 | 325 |
Dietary information was obtained from the USDA Food Database using a 1 cup serving size. Amounts may differ significantly based on brand and product.
The acidity of cow’s milk is just in the acid range, with a pH value of around 6.7 to 6.9. (A neutral pH level is 7).
Cow’s milk is not considered low potassium milk. An 8-ounce cup of cow’s milk has approximately 375 milligrams of potassium.
If potassium control is a concern, limiting cow’s milk to 1 cup per day may help.
The phosphorus content of cow’s milk is also fairly high. There are approximately 250 milligrams of phosphorus per 8-ounce serving.
Even organic phosphorus from cow’s milk will be absorbed by 60-80%.
Additionally, powdered or dehydrated milk often contains several phosphorus additives of which can be entirely absorbed by the body.
Calcium has been traditionally viewed as a benefit in drinking milk. Notably, a glass of cow’s milk has over 300 milligrams of calcium.
That’s about 30% of the recommended daily intake for an adult.
However, it is possible that a well-rounded, plant-based diet can also provide calcium.
Buttermilk
Buttermilk is fermented cow milk. Bacteria are added to the milk to induce fermentation.
Traditional buttermilk is considered a probiotic food due to the fermentation process, where that tangy taste comes from.
However, the typical buttermilk you find in the grocery store is generally cultured buttermilk.
Cultured buttermilk is made from the leftover liquid from making butter.
Type of buttermilk | Calories | Fat (g) | Protein (g) | Potassium (g) | Phosphorus (g) | Calcium (g) |
Buttermilk, whole | 150 | 8 | 8 | 329 | 207 | 281 |
Buttermilk, 2% | 140 | 5 | 10 | 439 | 200 | 349 |
Buttermilk, low-fat (1%) | 100 | 2.5 | 8 | 368 | 217 | 283 |
Buttermilk, skim | 90 | 0 | 9 | 368 | 217 | 283 |
Dietary information was obtained from the USDA Food Database using 1 cup serving size. Amounts may differ significantly based on brand and product.
Buttermilk can be used as kidney-friendly milk. However, the traditional buttermilk may not be a good option for those that are immunocompromised.
This is because unpasteurized milk is not recommended after transplant due to the risk of getting ill from the bacteria.
Goat Milk
Another more common animal milk is goat milk.
It’s commonly used in India but is becoming more popular in the United States as an alternative for those with allergies or digestive issues with cow milk.
Nutritionally, goat milk is quite similar to cow milk. Per 8-oz cup, goat milk has:
- 168 calories
- 8 grams protein
- 327 milligrams calcium
- 271 milligrams phosphorus
- 498 milligrams potassium
As you can see, goat milk is higher in potassium than cow milk. Those on a potassium restriction may need to limit goat milk in their diet.
However, because of the higher mineral content, goat milk is an alkaline milk option.
Goat milk has a PRAL score of -0.5. Because of this reason, goat milk is a more kidney-friendly animal milk option.
Read more about PRAL and how understanding this protects your kidneys here.
Plant Milk Options
There are so many plant milk options for kidney patients these days. In this section, we’ll dive into the different options to help you better understand what they provide.
There’s no one right answer and nothing that is totally off-limits. Take your own nutritional needs into consideration as well as how you will be using the milk within your meal.
Coconut Milk
Coconut milk can be a great substitution for cow’s milk in many ways.
This is not seen as milk bad for kidneys as it is derived from plants, making it naturally lower in phosphorus.
There are two types of coconut milk available.
Canned Coconut Milk
Canned coconut milk is traditionally used in cooking. Add it to soups, stews, or even baked goods.
Canned coconut milk has a light coconut flavor that can either be hidden or emphasized depending on the recipe you’re using.
One cup of canned coconut milk has:
- 445 calories
- 48 g fat
- 5 g protein
- 497 mg potassium
- 217 mg phosphorus
- 40 mg calcium
However, it’s not commonly used as a beverage given that it is very thick and heavy.
Canned coconut milk is most commonly used in cooking.
It’s a great option to add additional calories to a meal. This means it can provide more satiety with its rich, creamy texture and flavor.
While the potassium level seems high, it doesn’t contribute very much per serving.
Assume a recipe that makes 4 servings uses 1 cup of canned coconut milk. That means per serving, the canned coconut milk adds just 125 milligrams of potassium.
However, also adds 112 calories. This is why it can be helpful to use when more calories are needed.
You can find canned coconut milk in the grocery store’s center aisles and even online.
One of the coconut milk that does not have additives is kidney-friendly milk is Thai Kitchen organic lite coconut milk.*
The full-fat option* is also available (and I love that it has a resealable cap, making it great to use with several recipes).
Try using canned coconut milk in your next curry. It adds a boost of calories and flavor to make your meal more satisfying.
Ready-to-Drink Coconut Milk
Carton coconut milk, or ready-to-drink coconut milk, can be used in recipes like oatmeal, smoothies, or just poured into a glass.
Its thinner consistency is due to the water-to-coconut ratio being higher.
Ready-to-drink coconut milk has
- 70 calories
- 5 g fat
- 1 g protein
- 90 mg potassium
- 17 mg phosphorus
- 460 mg calcium
Due to the high water content of coconut milk, ready-to-drink coconut milk can make for low-potassium milk for dialysis patients.
Coconut milk can be a part of a plant-based diet and is absolutely okay for kidney disease.
Check out Real Coco organic original coconut milk* for a kidney-friendly coconut milk option.
Almond Milk
Almond milk is one of the most common plant-based milk alternatives. A cup of unsweetened almond milk has:
- 35 calories
- 2.5 g fat
- 1 g protein
- 180 mg potassium
- 68 mg phosphorus
- 395 mg calcium
It’s considered a low potassium milk when compared to the higher potassium cow’s milk.
The phosphorus in almond milk is quite low compared to cow’s milk. It’s a low phosphorus milk due to the fact that phosphorus from plant sources is not easily absorbed.
Some examples of kidney-friendly almond milk include:
Oat Milk
Oat milk is being seen more and more often as a plant-based milk option.
Many restaurants even now offer oat milk as a plant-based milk substitute, including coffee shops.
Per 8 ounce serving, oat milk has:
- 130 calories
- 5 g protein
- 2 g fat
- 131 mg potassium
- 150 mg phosphorus
- 18 mg calcium
Many oat milk options have phosphorus or potassium additives. Therefore, it is very important to read labels to find kidney-friendly oat milk.
Some examples of kidney-friendly oat milk include:
Be careful in choosing your oat milk as many include phosphorus or potassium additives.
Cashew Milk
Cashew milk is a great plant-based milk option for kidney disease. More creamy than almond, but still made from a nut, an 8-ounce cup of cashew milk has
- 30 calories
- 1 g protein
- 2.5 g fat
- 50 g potassium
- 48 mg calcium
The phosphorus content of cashew milk is difficult to find.
But by sticking to guidelines of no phosphate additives, less phosphorus will become absorbed.
Some examples of kidney-friendly cashew milk include:
Soy Milk
Soy often gets a bad reputation in the diet. Many have heard that soy causes cancer or affects hormone balances.
The facts are that soy provides protection against cancer. Soy also has no proven connection to affect hormone levels in men.
That being said, soy milk can also be a great option for milk for kidney disease.
One cup of unsweetened soy milk provides:
- 105 calories
- 4 g fat
- 6 g protein
- 298 mg potassium
- 105 mg phosphorus
- 300 mg calcium
Soy milk can be an excellent choice of milk for dialysis patients as the potassium level is no higher than cow’s milk.
The phosphorus content is lower and still provides plant-based protein.
Some examples of kidney-friendly soy milk include:
- 365 Organic unsweetened soy milk*
- Silk unsweetened organic soy milk*
- Kirkland Signature organic non-dairy vanilla soy beverage*
Rice Milk
Rice milk is one of the oldest recommended plant-based milk for kidney disease.
This is due to the low nutrient content of the rice used to make rice milk. It’s low-potassium and low-phosphorus when it has no potassium or phosphate additives.
One cup of rice milk has:
- 115 calories
- <1 g protein
- 2 g fat
- 66 mg potassium
- 137 mg phosphorus
- 288 mg calcium
An example of kidney-friendly rice milk is Rice Dream classic rice milk.*
Be sure to get the classic and not enriched. Enriched milk often includes additives.
Hemp Milk
Hemp milk is made from hemp seeds. The ingredient is a source of healthy fats which can help with satiety.
One cup of hemp milk has:
- 60 calories
- 3 g protein
- 7 g fat
- 101 mg potassium
- 317 mg phosphorus
- 283 mg calcium
Hemp milk has more phosphorus compared to other plant-based options.
It’s also especially important to read the label for additives as hemp milk can have phosphorus or potassium additives.
Macadamia Nut Milk
This is a newer milk product on the market. It can be considered kidney friendly, when you follow the guidelines discussed above.
An 8-ounce serving of macadamia milk has:
- 55 calories
- 1 gram protein
- 5 grams fat
- 180 milligrams calcium
There are no standard nutritional details for macadamia milk on the USDA Food Database at the time of this publication.
However, read the label and ingredient list of a macadamia milk you find to see if potassium and phosphorus amounts are listed.
Additionally, check for added phosphates and added potassium. If these are present, it will increase absorption and may be a concern for some kidney patients.
Check out this Kiki Milk* that uses macadamia nuts, along with cashews and Brazil nuts, in their plant milk option.
Comparison Chart of Milk for Kidney Disease
Here is a table to compare the different options when adding milk to the renal diet. Nutrition information is based on 8 ounces (~250 milliliters).
Type of milk | Calories | Fat (g) | Protein (g) | Potassium (mg) | Phosphorus (mg) | Calcium (mg) |
Cow’s (whole) | 150 | 8 | 8 | 374 | 251 | 306 |
Cow’s (2%) | 120 | 5 | 8 | 390 | 252 | 309 |
Cow’s (1%) | 100 | 2.5 | 8 | 366 | 232 | 305 |
Cow’s (Skim) | 80 | 0 | 8 | 411 | 263 | 325 |
Canned coconut milk | 445 | 48 | 5 | 497 | 217 | 40 |
Ready-to-drink coconut milk | 70 | 5 | 1 | 90 | 17 | 460 |
Almond milk | 30 | 2.5 | 1 | 180 | 68 | 395 |
Oat milk | 130 | 5 | 2 | 131 | 150 | 18 |
Cashew milk | 30 | 2.5 | 1 | 50 | 150 | 48 |
Soy milk | 105 | 4 | 6 | 298 | 105 | 300 |
Rice milk | 115 | <1 | 2 | 66 | 137 | 288 |
Hemp milk | 60 | 7 | 3 | 101 | 317 | 283 |
Macadamia milk | 55 | 5 | 1 | n/a | n/a | 180 |
Dietary information was obtained from the USDA Food Database using 1 cup serving size. Amounts may differ significantly based on brand and product.
Homemade Almond Milk
Homemade plant-based milk that is good for your kidneys can be a simple process with the right tools and ingredients!
Take 1 cup of raw almonds (like these*) and soak in a bowl of filtered water overnight or for at least 4 hours.
Drain almonds and add to a high-powered blender (this is our fave blender at home*) along with 2 cups of filtered water.
Blend on high until smooth. Add in an additional 2 cups of filtered water and blend again until smooth.
Filter into a pitcher or jar using a cheesecloth* or fine mesh strainer to remove the almond meal. Milk will keep for up to 1 week.
Instead of almonds, try rolled oats or raw cashews. If using rice, soak rice in hot water for 2 hours first.
Summary
With so many plant-based milk options available, shelf-stable or refrigerated, even people with kidney disease can find milk that is good for kidney disease.
The best type of milk will depend on the individual’s health goals. This may be to keep potassium controlled, limit protein, or avoid phosphorus additives.
Cow’s milk is typically higher in protein, potassium, and phosphorus compared to plant-based milk alternatives.
One of the most common plant-based milk that is kidney-friendly is rice milk. This is because it is low in most nutrients, especially when phosphorus and potassium-additive free.
If you want to keep milk in your renal diet, first determine with your nephrologist or primary care doctor what is most important to your health. A renal dietitian can help you learn how to add this creamy, cold beverage into your day.
Jen Hernandez is a registered dietitian and board-certified specialist in renal nutrition. She has nearly a decade of experience with kidney disease patients in all stages - from stage 1 through kidney transplant. Jen writes on the blog of Plant-Powered Kidneys to help reach and teach more kidney patients about how they can enjoy more foods in a plant-based diet while protecting kidney health.
THANK YOU for this information, truly helpful to learn of the right foods for someone who just got informed of an early Kidney Disease. Thank you!
Aw, you’re welcome, Ranni!! 🥰
Thank you very much ….Very informative. I am a healthy woman of 81.6 years, but I have 4mm kidney stones (lesi echogenic in right mid calyx) in my right Kidney. Creatinin 1.26 ….GFR 41 …..My uric acid is 6.7 ureum 61.6. Chronic Cystitis . How I wished you would help me.
I glad you find the articles helpful, Roswita! Be sure to check out our dietitian team and other dietitian resources if you’re looking for a dietitian.
How about walnut milk?
Hi Biren,
Thank you for your comment.
You can try looking up the nutritional facts of walnut milk online.
Then compare it to the chart in the article to make that decision.
Best of luck on your wellness journey.
Thank you for so much useful information. One thing I am not sure of is what is: ready to drink coconut milk?
Milk can be found either cold or at room temperature in the grocery store. Depending on your shopping preference, you may prefer to have some cold milk on hand and shelf-stable milk available for emergencies.
Regardless of where you find your favorite milk, it’s important to follow these guidelines when it comes to choosing the best milk for kidney disease.
Very useful article as always. Thanks a lot.
Thank you for this information. We are struggling to put milk, meat and vegetables into a picky persons diet.
Thank you Jen for such an informative and elaborate blog, God bless you .
What about Grass fed milk? I’m not a milk drinker but have a glass every once in a while. I have Stage 3b CKD. Sherry
How the cow’s are fed does not make a significant different on the milk nutrition. The biggest difference can be the cost!